diff --git a/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po b/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po
index 5b596ca..8c64f16 100644
--- a/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po
+++ b/src/agenda_culturel/locale/fr/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: agenda_culturel\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-03-14 23:45+0100\n"
+"POT-Creation-Date: 2025-03-15 19:10+0100\n"
 "PO-Revision-Date: 2023-10-29 14:16+0000\n"
 "Last-Translator: Jean-Marie Favreau <jeanmarie.favreau@free.fr>\n"
 "Language-Team: Jean-Marie Favreau <jeanmarie.favreau@free.fr>\n"
@@ -142,12 +142,12 @@ msgstr "dernier créé d'abord"
 msgid "Imported from"
 msgstr "Importé depuis"
 
-#: agenda_culturel/filters.py:470 agenda_culturel/models.py:771
-#: agenda_culturel/models.py:2784
+#: agenda_culturel/filters.py:470 agenda_culturel/models.py:794
+#: agenda_culturel/models.py:2824
 msgid "Status"
 msgstr "Status"
 
-#: agenda_culturel/filters.py:471 agenda_culturel/models.py:2537
+#: agenda_culturel/filters.py:471 agenda_culturel/models.py:2560
 msgid "Closed"
 msgstr "Fermé"
 
@@ -156,7 +156,7 @@ msgid "Open"
 msgstr "Ouvert"
 
 #: agenda_culturel/filters.py:475 agenda_culturel/filters.py:476
-#: agenda_culturel/models.py:2531
+#: agenda_culturel/models.py:2554
 msgid "Spam"
 msgstr "Spam"
 
@@ -164,7 +164,7 @@ msgstr "Spam"
 msgid "Non spam"
 msgstr "Non spam"
 
-#: agenda_culturel/filters.py:481 agenda_culturel/models.py:2552
+#: agenda_culturel/filters.py:481 agenda_culturel/models.py:2575
 msgid "Type"
 msgstr "Type"
 
@@ -195,11 +195,11 @@ msgstr ""
 msgid "Your email"
 msgstr "Votre adresse email"
 
-#: agenda_culturel/forms.py:166 agenda_culturel/models.py:2519
+#: agenda_culturel/forms.py:166 agenda_culturel/models.py:2542
 msgid "Your email address"
 msgstr "Votre adresse email"
 
-#: agenda_culturel/forms.py:172 agenda_culturel/models.py:2544
+#: agenda_culturel/forms.py:172 agenda_culturel/models.py:2567
 msgid "Comments"
 msgstr "Commentaires"
 
@@ -214,20 +214,20 @@ msgstr ""
 msgid "Receive notification of publication or leave a message for moderation"
 msgstr "Être notifié de la publication ou laisser un message à la modération"
 
-#: agenda_culturel/forms.py:206 agenda_culturel/models.py:212
-#: agenda_culturel/models.py:779 agenda_culturel/models.py:2695
-#: agenda_culturel/models.py:2819
+#: agenda_culturel/forms.py:206 agenda_culturel/models.py:235
+#: agenda_culturel/models.py:802 agenda_culturel/models.py:2718
+#: agenda_culturel/models.py:2859
 msgid "Category"
 msgstr "Catégorie"
 
 #: agenda_culturel/forms.py:212 agenda_culturel/forms.py:245
 #: agenda_culturel/forms.py:288 agenda_culturel/forms.py:468
-#: agenda_culturel/models.py:265 agenda_culturel/models.py:896
+#: agenda_culturel/models.py:288 agenda_culturel/models.py:919
 msgid "Tags"
 msgstr "Étiquettes"
 
 #: agenda_culturel/forms.py:220 agenda_culturel/forms.py:631
-#: agenda_culturel/models.py:1025
+#: agenda_culturel/models.py:1048
 msgid "Event"
 msgstr "Événement"
 
@@ -266,12 +266,12 @@ msgstr "Cet événement est récurrent"
 msgid "Details"
 msgstr "Détails"
 
-#: agenda_culturel/forms.py:376 agenda_culturel/models.py:808
-#: agenda_culturel/models.py:2670
+#: agenda_culturel/forms.py:376 agenda_culturel/models.py:831
+#: agenda_culturel/models.py:2693
 msgid "Location"
 msgstr "Localisation"
 
-#: agenda_culturel/forms.py:381 agenda_culturel/models.py:852
+#: agenda_culturel/forms.py:381 agenda_culturel/models.py:875
 msgid "Illustration"
 msgstr "Illustration"
 
@@ -345,8 +345,8 @@ msgstr "Valeur de la version sélectionnée"
 msgid "Apply category {} to the event {}"
 msgstr "Appliquer la catégorie {} à l'événement {}"
 
-#: agenda_culturel/forms.py:857 agenda_culturel/models.py:596
-#: agenda_culturel/models.py:2871
+#: agenda_culturel/forms.py:857 agenda_culturel/models.py:619
+#: agenda_culturel/models.py:2911
 msgid "Place"
 msgstr "Lieu"
 
@@ -368,7 +368,7 @@ msgstr ""
 msgid "Header"
 msgstr "Entête"
 
-#: agenda_culturel/forms.py:914 agenda_culturel/models.py:558
+#: agenda_culturel/forms.py:914 agenda_culturel/models.py:581
 msgid "Address"
 msgstr "Adresse"
 
@@ -413,11 +413,31 @@ msgstr ""
 "la page n'était pas encore peuplée des événements, le temps de chargement a "
 "sans doute été trop court"
 
-#: agenda_culturel/models.py:63
+#: agenda_culturel/models.py:70
+msgid "mean"
+msgstr "moyenne"
+
+#: agenda_culturel/models.py:71
+msgid "median"
+msgstr "médiane"
+
+#: agenda_culturel/models.py:72
+msgid "maximum"
+msgstr "maximum"
+
+#: agenda_culturel/models.py:73
+msgid "minimum"
+msgstr "minimum"
+
+#: agenda_culturel/models.py:74
+msgid "stdev"
+msgstr "écart-type"
+
+#: agenda_culturel/models.py:86
 msgid "Expert moderation user"
 msgstr "Utilisateur expert en modération"
 
-#: agenda_culturel/models.py:65
+#: agenda_culturel/models.py:88
 msgid ""
 "This user is an expert in moderation, and the interface features additional "
 "functionalities."
@@ -425,102 +445,102 @@ msgstr ""
 "Cet utilisateur est un expert en modération, et l'interface comporte des "
 "fonctionnalités additionnelles."
 
-#: agenda_culturel/models.py:71 agenda_culturel/models.py:75
+#: agenda_culturel/models.py:94 agenda_culturel/models.py:98
 msgid "User profile"
 msgstr ""
 
-#: agenda_culturel/models.py:72
+#: agenda_culturel/models.py:95
 msgid "User profiles"
 msgstr ""
 
-#: agenda_culturel/models.py:95 agenda_culturel/models.py:142
-#: agenda_culturel/models.py:221 agenda_culturel/models.py:515
-#: agenda_culturel/models.py:556 agenda_culturel/models.py:662
-#: agenda_culturel/models.py:2511 agenda_culturel/models.py:2620
+#: agenda_culturel/models.py:118 agenda_culturel/models.py:165
+#: agenda_culturel/models.py:244 agenda_culturel/models.py:538
+#: agenda_culturel/models.py:579 agenda_culturel/models.py:685
+#: agenda_culturel/models.py:2534 agenda_culturel/models.py:2643
 msgid "Name"
 msgstr "Nom"
 
-#: agenda_culturel/models.py:96 agenda_culturel/models.py:142
+#: agenda_culturel/models.py:119 agenda_culturel/models.py:165
 msgid "Category name"
 msgstr "Nom de la catégorie"
 
-#: agenda_culturel/models.py:101
+#: agenda_culturel/models.py:124
 msgid "Content"
 msgstr "Contenu"
 
-#: agenda_culturel/models.py:102
+#: agenda_culturel/models.py:125
 msgid "Text as shown to the visitors"
 msgstr "Texte tel que présenté aux visiteureuses"
 
-#: agenda_culturel/models.py:106
+#: agenda_culturel/models.py:129
 msgid "URL path"
 msgstr "Chemin URL"
 
-#: agenda_culturel/models.py:107
+#: agenda_culturel/models.py:130
 msgid "URL path where the content is included."
 msgstr "Chemin URL où le contenu est présent."
 
-#: agenda_culturel/models.py:111
+#: agenda_culturel/models.py:134
 msgid "Static content"
 msgstr "Contenu statique"
 
-#: agenda_culturel/models.py:112
+#: agenda_culturel/models.py:135
 msgid "Static contents"
 msgstr "Contenus statiques"
 
-#: agenda_culturel/models.py:148
+#: agenda_culturel/models.py:171
 msgid "Color"
 msgstr "Couleur"
 
-#: agenda_culturel/models.py:149
+#: agenda_culturel/models.py:172
 msgid "Color used as background for the category"
 msgstr "Couleur utilisée comme fond de la catégorie"
 
-#: agenda_culturel/models.py:155
+#: agenda_culturel/models.py:178
 msgid "Pictogram"
 msgstr "Pictogramme"
 
-#: agenda_culturel/models.py:156
+#: agenda_culturel/models.py:179
 msgid "Pictogram of the category (svg format)"
 msgstr "Pictogramme de la catégorie (format svg)"
 
-#: agenda_culturel/models.py:163
+#: agenda_culturel/models.py:186
 msgid "Position for ordering categories"
 msgstr "Position pour ordonner les catégories"
 
-#: agenda_culturel/models.py:213
+#: agenda_culturel/models.py:236
 msgid "Categories"
 msgstr "Catégories"
 
-#: agenda_culturel/models.py:222
+#: agenda_culturel/models.py:245
 msgid "Tag name"
 msgstr "Nom de l'étiquette"
 
-#: agenda_culturel/models.py:228 agenda_culturel/models.py:579
-#: agenda_culturel/models.py:678 agenda_culturel/models.py:835
+#: agenda_culturel/models.py:251 agenda_culturel/models.py:602
+#: agenda_culturel/models.py:701 agenda_culturel/models.py:858
 msgid "Description"
 msgstr "Description"
 
-#: agenda_culturel/models.py:229
+#: agenda_culturel/models.py:252
 msgid "Description of the tag"
 msgstr "Description de l'étiquette"
 
-#: agenda_culturel/models.py:235 agenda_culturel/models.py:2478
-#: agenda_culturel/models.py:2525
+#: agenda_culturel/models.py:258 agenda_culturel/models.py:2501
+#: agenda_culturel/models.py:2548
 msgid "Message"
 msgstr "Message"
 
-#: agenda_culturel/models.py:237
+#: agenda_culturel/models.py:260
 msgid "Message displayed to the user on each event associated with this tag."
 msgstr ""
 "Message affiché à l'utilisateur sur chaque événement associé à cette "
 "étiquette."
 
-#: agenda_culturel/models.py:244
+#: agenda_culturel/models.py:267
 msgid "Principal"
 msgstr "Principal"
 
-#: agenda_culturel/models.py:246
+#: agenda_culturel/models.py:269
 msgid ""
 "This tag is highlighted as a main tag for visitors, particularly in the "
 "filter."
@@ -528,91 +548,91 @@ msgstr ""
 "Cette étiquette est mise en avant comme étiquette principale pour les "
 "visiteurs, en particulier dans le filtre."
 
-#: agenda_culturel/models.py:252
+#: agenda_culturel/models.py:275
 msgid "In excluded suggestions"
 msgstr "Dans les suggestions d'exclusion"
 
-#: agenda_culturel/models.py:253
+#: agenda_culturel/models.py:276
 msgid "This tag will be part of the excluded suggestions."
 msgstr "Cette étiquette fera partie des suggestions d'exclusion."
 
-#: agenda_culturel/models.py:258
+#: agenda_culturel/models.py:281
 msgid "In included suggestions"
 msgstr "Dans les suggestions d'inclusion."
 
-#: agenda_culturel/models.py:259
+#: agenda_culturel/models.py:282
 msgid "This tag will be part of the included suggestions."
 msgstr "Cette étiquette fera partie des suggestions d'inclusion."
 
-#: agenda_culturel/models.py:264
+#: agenda_culturel/models.py:287
 msgid "Tag"
 msgstr "Étiquette"
 
-#: agenda_culturel/models.py:353
+#: agenda_culturel/models.py:376
 msgid "Suggestions"
 msgstr "Suggestions"
 
-#: agenda_culturel/models.py:354
+#: agenda_culturel/models.py:377
 msgid "Others"
 msgstr "Autres"
 
-#: agenda_culturel/models.py:367
+#: agenda_culturel/models.py:390
 msgid "Representative event"
 msgstr "Événement représentatif"
 
-#: agenda_culturel/models.py:369
+#: agenda_culturel/models.py:392
 msgid "This event is the representative event of the duplicated events group"
 msgstr ""
 "Cet événement est l'événement représentatif du groupe d'événements dupliqués."
 
-#: agenda_culturel/models.py:377 agenda_culturel/models.py:378
+#: agenda_culturel/models.py:400 agenda_culturel/models.py:401
 msgid "Duplicated events"
 msgstr "Événements dupliqués"
 
-#: agenda_culturel/models.py:516
+#: agenda_culturel/models.py:539
 msgid "Name of the location"
 msgstr "Nom de la position"
 
-#: agenda_culturel/models.py:527
+#: agenda_culturel/models.py:550
 msgid "Main"
 msgstr "Principale"
 
-#: agenda_culturel/models.py:529
+#: agenda_culturel/models.py:552
 msgid "This location is one of the main locations (shown first higher values)."
 msgstr ""
 "Cette position est une position principale (affichage en premier des plus "
 "grandes valeurs)."
 
-#: agenda_culturel/models.py:534
+#: agenda_culturel/models.py:557
 msgid "Suggested distance (km)"
 msgstr ""
 
-#: agenda_culturel/models.py:536
+#: agenda_culturel/models.py:559
 msgid ""
 "If this distance is given, this location is part of the suggested filters."
 msgstr ""
 
-#: agenda_culturel/models.py:545
+#: agenda_culturel/models.py:568
 msgid "Reference location"
 msgstr "Position de référence"
 
-#: agenda_culturel/models.py:546
+#: agenda_culturel/models.py:569
 msgid "Reference locations"
 msgstr "Positions de référence"
 
-#: agenda_culturel/models.py:556
+#: agenda_culturel/models.py:579
 msgid "Name of the place"
 msgstr "Nom du lieu"
 
-#: agenda_culturel/models.py:559
+#: agenda_culturel/models.py:582
 msgid "Address of this place (without city name)"
 msgstr "Adresse de ce lieu (sans le nom de la ville)"
 
-#: agenda_culturel/models.py:564
+#: agenda_culturel/models.py:587
 msgid "Postcode"
 msgstr "Code postal"
 
-#: agenda_culturel/models.py:566
+#: agenda_culturel/models.py:589
 msgid ""
 "The post code is not displayed, but makes it easier to find an address when "
 "you enter it."
@@ -620,23 +640,23 @@ msgstr ""
 "Le code postal ne sera pas affiché, mais facilite la recherche d'adresse au "
 "moment de la saisie."
 
-#: agenda_culturel/models.py:571
+#: agenda_culturel/models.py:594
 msgid "City"
 msgstr "Ville"
 
-#: agenda_culturel/models.py:571
+#: agenda_culturel/models.py:594
 msgid "City name"
 msgstr "Nom de la ville"
 
-#: agenda_culturel/models.py:580
+#: agenda_culturel/models.py:603
 msgid "Description of the place, including accessibility."
 msgstr "Description du lieu, inclus l'accessibilité."
 
-#: agenda_culturel/models.py:587
+#: agenda_culturel/models.py:610
 msgid "Alternative names"
 msgstr "Noms alternatifs"
 
-#: agenda_culturel/models.py:589
+#: agenda_culturel/models.py:612
 msgid ""
 "Alternative names or addresses used to match a place with the free-form "
 "location of an event."
@@ -644,31 +664,31 @@ msgstr ""
 "Noms et adresses alternatives qui seront utilisées pour associer une adresse "
 "avec la localisation en forme libre d'un événement"
 
-#: agenda_culturel/models.py:597
+#: agenda_culturel/models.py:620
 msgid "Places"
 msgstr "Lieux"
 
-#: agenda_culturel/models.py:663
+#: agenda_culturel/models.py:686
 msgid "Organisation name"
 msgstr "Nom de l'organisme"
 
-#: agenda_culturel/models.py:670
+#: agenda_culturel/models.py:693
 msgid "Website"
 msgstr "Site internet"
 
-#: agenda_culturel/models.py:671
+#: agenda_culturel/models.py:694
 msgid "Website of the organisation"
 msgstr "Site internet de l'organisme"
 
-#: agenda_culturel/models.py:679
+#: agenda_culturel/models.py:702
 msgid "Description of the organisation."
 msgstr "Description de l'organisme"
 
-#: agenda_culturel/models.py:686
+#: agenda_culturel/models.py:709
 msgid "Principal place"
 msgstr "Lieu principal"
 
-#: agenda_culturel/models.py:688
+#: agenda_culturel/models.py:711
 msgid ""
 "Place mainly associated with this organizer. Mainly used if there is a "
 "similarity in the name, to avoid redundant displays."
@@ -676,75 +696,75 @@ msgstr ""
 "Lieu principalement associé à cet organisateur. Principalement utilisé s'il "
 "y a une similarité de nom, pour éviter les affichages redondants."
 
-#: agenda_culturel/models.py:696
+#: agenda_culturel/models.py:719
 msgid "Organisation"
 msgstr "Organisme"
 
-#: agenda_culturel/models.py:697
+#: agenda_culturel/models.py:720
 msgid "Organisations"
 msgstr "Organismes"
 
-#: agenda_culturel/models.py:708 agenda_culturel/models.py:2665
+#: agenda_culturel/models.py:731 agenda_culturel/models.py:2688
 msgid "Published"
 msgstr "Publié"
 
-#: agenda_culturel/models.py:709
+#: agenda_culturel/models.py:732
 msgid "Draft"
 msgstr "Brouillon"
 
-#: agenda_culturel/models.py:710
+#: agenda_culturel/models.py:733
 msgid "Trash"
 msgstr "Corbeille"
 
-#: agenda_culturel/models.py:720
+#: agenda_culturel/models.py:743
 msgid "Author currently editing/moderating the event"
 msgstr ""
 
-#: agenda_culturel/models.py:730
+#: agenda_culturel/models.py:753
 msgid "Author of the event creation"
 msgstr "Auteur de la création de l'événement"
 
-#: agenda_culturel/models.py:739
+#: agenda_culturel/models.py:762
 msgid "Author of the last importation"
 msgstr "Auteur de la dernière importation"
 
-#: agenda_culturel/models.py:748
+#: agenda_culturel/models.py:771
 msgid "Author of the last modification"
 msgstr "Auteur de la dernière modification"
 
-#: agenda_culturel/models.py:757
+#: agenda_culturel/models.py:780
 msgid "Author of the last moderation"
 msgstr "Auteur de la dernière modération"
 
-#: agenda_culturel/models.py:768
+#: agenda_culturel/models.py:791
 msgid "Title"
 msgstr "Titre"
 
-#: agenda_culturel/models.py:785
+#: agenda_culturel/models.py:808
 msgid "Start day"
 msgstr "Date de début"
 
-#: agenda_culturel/models.py:787
+#: agenda_culturel/models.py:810
 msgid "Start time"
 msgstr "Heure de début"
 
-#: agenda_culturel/models.py:793
+#: agenda_culturel/models.py:816
 msgid "End day"
 msgstr "Date de fin"
 
-#: agenda_culturel/models.py:797
+#: agenda_culturel/models.py:820
 msgid "End time"
 msgstr "Heure de fin"
 
-#: agenda_culturel/models.py:800
+#: agenda_culturel/models.py:823
 msgid "Recurrence"
 msgstr "Récurrence"
 
-#: agenda_culturel/models.py:814
+#: agenda_culturel/models.py:837
 msgid "Location (free form)"
 msgstr "Localisation (forme libre)"
 
-#: agenda_culturel/models.py:816
+#: agenda_culturel/models.py:839
 msgid ""
 "Address of the event in case its not available in the already known places "
 "(free form)"
@@ -752,11 +772,11 @@ msgstr ""
 "Adresse d'un événement si elle n'est pas déjà présente dans la liste des "
 "lieux disponibles (forme libre)"
 
-#: agenda_culturel/models.py:825
+#: agenda_culturel/models.py:848
 msgid "Local event"
 msgstr "Événement de portée locale"
 
-#: agenda_culturel/models.py:827
+#: agenda_culturel/models.py:850
 msgid ""
 "If the event is a local event, it will not be proposed by default in daily, "
 "weekly or monthly views, unless the user has explicitly indicated that he "
@@ -766,11 +786,11 @@ msgstr ""
 "les vues quotidiennes, hebdomadaires ou mensuelles, sauf si l'utilisateur a "
 "explicitement indiqué qu'il souhaite voir ces événements."
 
-#: agenda_culturel/models.py:843
+#: agenda_culturel/models.py:866
 msgid "Organisers"
 msgstr "Organisateurs"
 
-#: agenda_culturel/models.py:845
+#: agenda_culturel/models.py:868
 msgid ""
 "list of event organisers. Organizers will only be displayed if one of them "
 "does not normally use the venue."
@@ -778,112 +798,112 @@ msgstr ""
 "Liste des organisateurs de l'événements. Les organisateurs seront affichés "
 "uniquement si au moins un d'entre eux n'utilise pas habituellement le lieu."
 
-#: agenda_culturel/models.py:859
+#: agenda_culturel/models.py:882
 msgid "Illustration (URL)"
 msgstr "Illustration (URL)"
 
-#: agenda_culturel/models.py:860
+#: agenda_culturel/models.py:883
 msgid "External URL of the illustration image"
 msgstr "URL externe de l'image illustrative"
 
-#: agenda_culturel/models.py:866
+#: agenda_culturel/models.py:889
 msgid "Illustration description"
 msgstr "Description de l'illustration"
 
-#: agenda_culturel/models.py:867
+#: agenda_culturel/models.py:890
 msgid "Alternative text used by screen readers for the image"
 msgstr "Texte alternatif utiliser par les lecteurs d'écrans pour l'image"
 
-#: agenda_culturel/models.py:875
+#: agenda_culturel/models.py:898
 msgid "Importation source"
 msgstr "Source d'importation"
 
-#: agenda_culturel/models.py:876
+#: agenda_culturel/models.py:899
 msgid "Importation source used to detect removed entries."
 msgstr "Source d'importation utilisée pour détecter les éléments supprimés/"
 
-#: agenda_culturel/models.py:882
+#: agenda_culturel/models.py:905
 msgid "UUIDs"
 msgstr "UUIDs"
 
-#: agenda_culturel/models.py:883
+#: agenda_culturel/models.py:906
 msgid "UUIDs from import to detect duplicated entries."
 msgstr "UUIDs utilisés pendant l'import pour détecter les entrées dupliquées"
 
-#: agenda_culturel/models.py:889
+#: agenda_culturel/models.py:912
 msgid "Online sources or ticketing"
 msgstr "Sources en ligne ou billetterie"
 
-#: agenda_culturel/models.py:903
+#: agenda_culturel/models.py:926
 msgid "Other versions"
 msgstr ""
 
-#: agenda_culturel/models.py:1026
+#: agenda_culturel/models.py:1049
 msgid "Events"
 msgstr "Événements"
 
-#: agenda_culturel/models.py:1082
+#: agenda_culturel/models.py:1105
 msgid "recurrent import"
 msgstr "import récurrent"
 
-#: agenda_culturel/models.py:1084
+#: agenda_culturel/models.py:1107
 msgid "a non authenticated user"
 msgstr "un utilisateur non connecté"
 
-#: agenda_culturel/models.py:1566
+#: agenda_culturel/models.py:1589
 msgid "Your event has been published"
 msgstr "Ton événement a été publié"
 
-#: agenda_culturel/models.py:1571
+#: agenda_culturel/models.py:1594
 msgid "Your message has not been retained"
 msgstr "Ton événement n'a pas été retenu"
 
-#: agenda_culturel/models.py:1659 agenda_culturel/models.py:2475
+#: agenda_culturel/models.py:1682 agenda_culturel/models.py:2498
 msgid "Warning"
 msgstr "Warning"
 
-#: agenda_culturel/models.py:1661 agenda_culturel/models.py:1767
+#: agenda_culturel/models.py:1684 agenda_culturel/models.py:1790
 msgid "the date has not been imported correctly."
 msgstr "la date n'a pas été importée correctement."
 
-#: agenda_culturel/models.py:1749
+#: agenda_culturel/models.py:1772
 msgid "during import process"
 msgstr "pendant le processus d'import"
 
-#: agenda_culturel/models.py:1765 agenda_culturel/models.py:1775
-#: agenda_culturel/models.py:1786
+#: agenda_culturel/models.py:1788 agenda_culturel/models.py:1798
+#: agenda_culturel/models.py:1809
 msgid "warning"
 msgstr "attention"
 
-#: agenda_culturel/models.py:1777
+#: agenda_culturel/models.py:1800
 msgid "the title has not been imported correctly."
 msgstr "le titre n'a pas été importé correctement."
 
-#: agenda_culturel/models.py:1789
+#: agenda_culturel/models.py:1812
 msgid "The import was unable to find an event in the page."
 msgstr "L'import a été incapable de trouver un événement dans la page."
 
-#: agenda_culturel/models.py:2137
+#: agenda_culturel/models.py:2160
 msgid "Updated field(s): "
 msgstr "Champ(s) mis à jour: "
 
-#: agenda_culturel/models.py:2141
+#: agenda_culturel/models.py:2164
 msgid "Update"
 msgstr "Mise à jour"
 
-#: agenda_culturel/models.py:2142
+#: agenda_culturel/models.py:2165
 msgid "update process"
 msgstr "processus de mise à jour"
 
-#: agenda_culturel/models.py:2211
+#: agenda_culturel/models.py:2234
 msgid "Import"
 msgstr "Import"
 
-#: agenda_culturel/models.py:2212
+#: agenda_culturel/models.py:2235
 msgid "import process"
 msgstr "processus d'import"
 
-#: agenda_culturel/models.py:2214
+#: agenda_culturel/models.py:2237
 msgid ""
 "The duration of the event is a little too long for direct publication. "
 "Moderators can choose to publish it or not."
@@ -891,187 +911,187 @@ msgstr ""
 "La durée de l'événement est un peu trop longue pour qu'il soit publié "
 "directement. Les modérateurs peuvent choisir de le publier ou non."
 
-#: agenda_culturel/models.py:2466
+#: agenda_culturel/models.py:2489
 msgid "From contributor"
 msgstr "D'un·e contributeurice"
 
-#: agenda_culturel/models.py:2467
+#: agenda_culturel/models.py:2490
 msgid "Import process"
 msgstr "Processus d'import"
 
-#: agenda_culturel/models.py:2468
+#: agenda_culturel/models.py:2491
 msgid "Update process"
 msgstr "Processus de mise à jour"
 
-#: agenda_culturel/models.py:2469
+#: agenda_culturel/models.py:2492
 msgid "Contact form"
 msgstr "Formulaire de contact"
 
-#: agenda_culturel/models.py:2470
+#: agenda_culturel/models.py:2493
 msgid "Event report"
 msgstr "Signalemet d'événement"
 
-#: agenda_culturel/models.py:2473
+#: agenda_culturel/models.py:2496
 msgid "From contributor (without message)"
 msgstr "D'un·e contributeurice (sans message)"
 
-#: agenda_culturel/models.py:2479
+#: agenda_culturel/models.py:2502
 msgid "Messages"
 msgstr "Messages"
 
-#: agenda_culturel/models.py:2488
+#: agenda_culturel/models.py:2511
 msgid "Subject"
 msgstr "Sujet"
 
-#: agenda_culturel/models.py:2489
+#: agenda_culturel/models.py:2512
 msgid "The subject of your message"
 msgstr "Sujet de votre message"
 
-#: agenda_culturel/models.py:2495
+#: agenda_culturel/models.py:2518
 msgid "Related event"
 msgstr "Événement associé"
 
-#: agenda_culturel/models.py:2496
+#: agenda_culturel/models.py:2519
 msgid "The message is associated with this event."
 msgstr "Le message est associé à cet événement."
 
-#: agenda_culturel/models.py:2504
+#: agenda_culturel/models.py:2527
 msgid "Author of the message"
 msgstr "Auteur du message"
 
-#: agenda_culturel/models.py:2512
+#: agenda_culturel/models.py:2535
 msgid "Your name"
 msgstr "Votre nom"
 
-#: agenda_culturel/models.py:2518
+#: agenda_culturel/models.py:2541
 msgid "Email address"
 msgstr "Adresse email"
 
-#: agenda_culturel/models.py:2525
+#: agenda_culturel/models.py:2548
 msgid "Your message"
 msgstr "Votre message"
 
-#: agenda_culturel/models.py:2532
+#: agenda_culturel/models.py:2555
 msgid "This message is a spam."
 msgstr "Ce message est un spam."
 
-#: agenda_culturel/models.py:2539
+#: agenda_culturel/models.py:2562
 msgid "this message has been processed and no longer needs to be handled"
 msgstr "Ce message a été traité et ne nécessite plus d'être pris en charge"
 
-#: agenda_culturel/models.py:2545
+#: agenda_culturel/models.py:2568
 msgid "Comments on the message from the moderation team"
 msgstr "Commentaires sur ce message par l'équipe de modération"
 
-#: agenda_culturel/models.py:2578 agenda_culturel/models.py:2766
+#: agenda_culturel/models.py:2601 agenda_culturel/models.py:2806
 msgid "Recurrent import"
 msgstr "Import récurrent"
 
-#: agenda_culturel/models.py:2579
+#: agenda_culturel/models.py:2602
 msgid "Recurrent imports"
 msgstr "Imports récurrents"
 
-#: agenda_culturel/models.py:2583
+#: agenda_culturel/models.py:2606
 msgid "ical"
 msgstr "ical"
 
-#: agenda_culturel/models.py:2584
+#: agenda_culturel/models.py:2607
 msgid "ical no busy"
 msgstr "ical sans busy"
 
-#: agenda_culturel/models.py:2585
+#: agenda_culturel/models.py:2608
 msgid "ical no VC"
 msgstr "ical sans VC"
 
-#: agenda_culturel/models.py:2586
+#: agenda_culturel/models.py:2609
 msgid "ical naive timezone"
 msgstr "ical timezone naïve"
 
-#: agenda_culturel/models.py:2587
+#: agenda_culturel/models.py:2610
 msgid "lacoope.org"
 msgstr "lacoope.org"
 
-#: agenda_culturel/models.py:2588
+#: agenda_culturel/models.py:2611
 msgid "la comédie"
 msgstr "la comédie"
 
-#: agenda_culturel/models.py:2589
+#: agenda_culturel/models.py:2612
 msgid "le fotomat"
 msgstr "le fotomat"
 
-#: agenda_culturel/models.py:2590
+#: agenda_culturel/models.py:2613
 msgid "la puce à l'oreille"
 msgstr "la puce à loreille"
 
-#: agenda_culturel/models.py:2591
+#: agenda_culturel/models.py:2614
 msgid "Plugin wordpress MEC"
 msgstr "Plugin wordpress MEC"
 
-#: agenda_culturel/models.py:2592
+#: agenda_culturel/models.py:2615
 msgid "Événements d'une page FB"
 msgstr "Événements d'une page FB"
 
-#: agenda_culturel/models.py:2593
+#: agenda_culturel/models.py:2616
 msgid "Billetterie Clermont-Ferrand"
 msgstr ""
 
-#: agenda_culturel/models.py:2594
+#: agenda_culturel/models.py:2617
 msgid "Arachnée concert"
 msgstr "Arachnée concert"
 
-#: agenda_culturel/models.py:2595
+#: agenda_culturel/models.py:2618
 msgid "Le Rio"
 msgstr "Le Rio"
 
-#: agenda_culturel/models.py:2596
+#: agenda_culturel/models.py:2619
 msgid "La Raymonde"
 msgstr "La Raymone"
 
-#: agenda_culturel/models.py:2597
+#: agenda_culturel/models.py:2620
 msgid "Agenda apidae tourisme"
 msgstr "Agenda apidae tourisme"
 
-#: agenda_culturel/models.py:2598
+#: agenda_culturel/models.py:2621
 msgid "Agenda iguana (médiathèques)"
 msgstr "Agenda iguana (médiathèques)"
 
-#: agenda_culturel/models.py:2599
+#: agenda_culturel/models.py:2622
 msgid "Mille formes"
 msgstr "Mille Formes"
 
-#: agenda_culturel/models.py:2600
+#: agenda_culturel/models.py:2623
 msgid "Les Amis du Temps des Cerises"
 msgstr "Les Amis du Temps des Cerises"
 
-#: agenda_culturel/models.py:2601
+#: agenda_culturel/models.py:2624
 msgid "Mobilizon"
 msgstr "Mobilizon"
 
-#: agenda_culturel/models.py:2604
+#: agenda_culturel/models.py:2627
 msgid "simple"
 msgstr "simple"
 
-#: agenda_culturel/models.py:2605
+#: agenda_culturel/models.py:2628
 msgid "Headless Chromium"
 msgstr "chromium sans interface"
 
-#: agenda_culturel/models.py:2608
+#: agenda_culturel/models.py:2631
 msgid "Headless Chromium (pause)"
 msgstr "chromium sans interface (pause)"
 
-#: agenda_culturel/models.py:2614
+#: agenda_culturel/models.py:2637
 msgid "daily"
 msgstr "chaque jour"
 
-#: agenda_culturel/models.py:2616
+#: agenda_culturel/models.py:2639
 msgid "weekly"
 msgstr "chaque semaine"
 
-#: agenda_culturel/models.py:2617
+#: agenda_culturel/models.py:2640
 msgid "never"
 msgstr "jamais"
 
-#: agenda_culturel/models.py:2622
+#: agenda_culturel/models.py:2645
 msgid ""
 "Recurrent import name. Be careful to choose a name that is easy to "
 "understand, as it will be public and displayed on the sites About page."
@@ -1079,171 +1099,151 @@ msgstr ""
 "Nom de l'import récurrent. Attention à choisir un nom compréhensible, car il "
 "sera public, et affiché sur la page à propos du site."
 
-#: agenda_culturel/models.py:2629
+#: agenda_culturel/models.py:2652
 msgid "Processor"
 msgstr "Processeur"
 
-#: agenda_culturel/models.py:2635
+#: agenda_culturel/models.py:2658
 msgid "Downloader"
 msgstr "Téléchargeur"
 
-#: agenda_culturel/models.py:2642
+#: agenda_culturel/models.py:2665
 msgid "Import recurrence"
 msgstr "Récurrence d'import"
 
-#: agenda_culturel/models.py:2649
+#: agenda_culturel/models.py:2672
 msgid "Source"
 msgstr "Source"
 
-#: agenda_culturel/models.py:2650
+#: agenda_culturel/models.py:2673
 msgid "URL of the source document"
 msgstr "URL du document source"
 
-#: agenda_culturel/models.py:2655
+#: agenda_culturel/models.py:2678
 msgid "Browsable url"
 msgstr "URL navigable"
 
-#: agenda_culturel/models.py:2657
+#: agenda_culturel/models.py:2680
 msgid "URL of the corresponding document that will be shown to visitors."
 msgstr "URL correspondant au document et qui sera montrée aux visiteurs"
 
-#: agenda_culturel/models.py:2666
+#: agenda_culturel/models.py:2689
 msgid "Status of each imported event (published or draft)"
 msgstr "Status de chaque événement importé (publié ou brouillon)"
 
-#: agenda_culturel/models.py:2671
+#: agenda_culturel/models.py:2694
 msgid "Address for each imported event"
 msgstr "Adresse de chaque événement importé"
 
-#: agenda_culturel/models.py:2678
+#: agenda_culturel/models.py:2701
 msgid "Force location"
 msgstr "Focer la localisation"
 
-#: agenda_culturel/models.py:2679
+#: agenda_culturel/models.py:2702
 msgid "force location even if another is detected."
 msgstr "Forcer la localisation même si une autre a été détectée."
 
-#: agenda_culturel/models.py:2685
+#: agenda_culturel/models.py:2708
 msgid "Organiser"
 msgstr "Organisateur"
 
-#: agenda_culturel/models.py:2686
+#: agenda_culturel/models.py:2709
 msgid "Organiser of each imported event"
 msgstr "Organisateur de chaque événement importé"
 
-#: agenda_culturel/models.py:2696
+#: agenda_culturel/models.py:2719
 msgid "Category of each imported event"
 msgstr "Catégorie de chaque événement importé"
 
-#: agenda_culturel/models.py:2704
+#: agenda_culturel/models.py:2727
 msgid "Tags for each imported event"
 msgstr "Étiquettes de chaque événement importé"
 
-#: agenda_culturel/models.py:2705
+#: agenda_culturel/models.py:2728
 msgid "A list of tags that describe each imported event."
 msgstr "Une liste d'étiquettes décrivant chaque événement importé"
 
-#: agenda_culturel/models.py:2737
-msgid "minimum"
-msgstr "minimum"
-
-#: agenda_culturel/models.py:2738
-msgid "maximum"
-msgstr "maximum"
-
-#: agenda_culturel/models.py:2739
-msgid "mean"
-msgstr "moyenne"
-
-#: agenda_culturel/models.py:2740
-msgid "standard deviation"
-msgstr "écart-type"
-
-#: agenda_culturel/models.py:2741
-msgid "median"
-msgstr "médiane"
-
-#: agenda_culturel/models.py:2747
+#: agenda_culturel/models.py:2787
 msgid "Running"
 msgstr "En cours"
 
-#: agenda_culturel/models.py:2748
+#: agenda_culturel/models.py:2788
 msgid "Canceled"
 msgstr "Annulé"
 
-#: agenda_culturel/models.py:2749
+#: agenda_culturel/models.py:2789
 msgid "Success"
 msgstr "Succès"
 
-#: agenda_culturel/models.py:2750
+#: agenda_culturel/models.py:2790
 msgid "Failed"
 msgstr "Erreur"
 
-#: agenda_culturel/models.py:2753
+#: agenda_culturel/models.py:2793
 msgid "Batch importation"
 msgstr "Importation par lot"
 
-#: agenda_culturel/models.py:2754
+#: agenda_culturel/models.py:2794
 msgid "Batch importations"
 msgstr "Importations par lot"
 
-#: agenda_culturel/models.py:2767
+#: agenda_culturel/models.py:2807
 msgid "Reference to the recurrent import processing"
 msgstr "Référence du processus d'import récurrent"
 
-#: agenda_culturel/models.py:2775
+#: agenda_culturel/models.py:2815
 msgid "URL (if not recurrent import)"
 msgstr "URL (si pas d'import récurrent)"
 
-#: agenda_culturel/models.py:2776
+#: agenda_culturel/models.py:2816
 msgid "Source URL if no RecurrentImport is associated."
 msgstr "URL source si aucun import récurrent n'est associé"
 
-#: agenda_culturel/models.py:2791
+#: agenda_culturel/models.py:2831
 msgid "Error message"
 msgstr "Votre message"
 
-#: agenda_culturel/models.py:2795
+#: agenda_culturel/models.py:2835
 msgid "Number of collected events"
 msgstr "Nombre d'événements collectés"
 
-#: agenda_culturel/models.py:2798
+#: agenda_culturel/models.py:2838
 msgid "Number of imported events"
 msgstr "Nombre d'événements importés"
 
-#: agenda_culturel/models.py:2801
+#: agenda_culturel/models.py:2841
 msgid "Number of updated events"
 msgstr "Nombre d'événements mis à jour"
 
-#: agenda_culturel/models.py:2804
+#: agenda_culturel/models.py:2844
 msgid "Number of removed events"
 msgstr "Nombre d'événements supprimés"
 
-#: agenda_culturel/models.py:2812
+#: agenda_culturel/models.py:2852
 msgid "Weight"
 msgstr "Poids"
 
-#: agenda_culturel/models.py:2813
+#: agenda_culturel/models.py:2853
 msgid "The lower is the weight, the earlier the filter is applied"
 msgstr "Plus le poids est léger, plus le filtre sera appliqué tôt"
 
-#: agenda_culturel/models.py:2820
+#: agenda_culturel/models.py:2860
 msgid "Category applied to the event"
 msgstr "Catégorie appliquée à l'événement"
 
-#: agenda_culturel/models.py:2825
+#: agenda_culturel/models.py:2865
 msgid "Contained in the title"
 msgstr "Contenu dans le titre"
 
-#: agenda_culturel/models.py:2826
+#: agenda_culturel/models.py:2866
 msgid "Text contained in the event title"
 msgstr "Texte contenu dans le titre de l'événement"
 
-#: agenda_culturel/models.py:2832
+#: agenda_culturel/models.py:2872
 msgid "Exact title extract"
 msgstr "Extrait exact du titre"
 
-#: agenda_culturel/models.py:2834
+#: agenda_culturel/models.py:2874
 msgid ""
 "If checked, the extract will be searched for in the title using the exact "
 "form (capitals, accents)."
@@ -1251,19 +1251,19 @@ msgstr ""
 "Si coché, l'extrait sera recherché dans le titre en utilisant la forme "
 "exacte (majuscules, accents)"
 
-#: agenda_culturel/models.py:2840
+#: agenda_culturel/models.py:2880
 msgid "Contained in the description"
 msgstr "Contenu dans la description"
 
-#: agenda_culturel/models.py:2841
+#: agenda_culturel/models.py:2881
 msgid "Text contained in the description"
 msgstr "Texte contenu dans la description"
 
-#: agenda_culturel/models.py:2847
+#: agenda_culturel/models.py:2887
 msgid "Exact description extract"
 msgstr "Extrait exact de description"
 
-#: agenda_culturel/models.py:2849
+#: agenda_culturel/models.py:2889
 msgid ""
 "If checked, the extract will be searched for in the description using the "
 "exact form (capitals, accents)."
@@ -1271,19 +1271,19 @@ msgstr ""
 "Si coché, l'extrait sera recherché dans la description en utilisant la forme "
 "exacte (majuscules, accents)"
 
-#: agenda_culturel/models.py:2855
+#: agenda_culturel/models.py:2895
 msgid "Contained in the location"
 msgstr "Contenu dans la localisation"
 
-#: agenda_culturel/models.py:2856
+#: agenda_culturel/models.py:2896
 msgid "Text contained in the event location"
 msgstr "Texte contenu dans la localisation de l'événement"
 
-#: agenda_culturel/models.py:2862
+#: agenda_culturel/models.py:2902
 msgid "Exact location extract"
 msgstr "Extrait exact de localisation"
 
-#: agenda_culturel/models.py:2864
+#: agenda_culturel/models.py:2904
 msgid ""
 "If checked, the extract will be searched for in the location using the exact "
 "form (capitals, accents)."
@@ -1291,15 +1291,15 @@ msgstr ""
 "Si coché, l'extrait sera recherché dans la localisation en utilisant la "
 "forme exacte (majuscules, accents)"
 
-#: agenda_culturel/models.py:2872
+#: agenda_culturel/models.py:2912
 msgid "Location from place"
 msgstr "Localisation depuis le lieu"
 
-#: agenda_culturel/models.py:2881
+#: agenda_culturel/models.py:2921
 msgid "Categorisation rule"
 msgstr "Règle de catégorisation"
 
-#: agenda_culturel/models.py:2882
+#: agenda_culturel/models.py:2922
 msgid "Categorisation rules"
 msgstr "Règles de catégorisation"
 
@@ -1621,11 +1621,11 @@ msgstr "L'étiquette a été modifiée avec succès."
 msgid "The tag has been successfully created."
 msgstr "L'étiquette a été créée avec succès."
 
-#: agenda_culturel/views.py:2871
+#: agenda_culturel/views.py:2874
 msgid "You have not modified the tag name."
 msgstr "Vous n'avez pas modifié le nom de l'étiquette."
 
-#: agenda_culturel/views.py:2886
+#: agenda_culturel/views.py:2889
 msgid ""
 "This tag {} is already in use, and is described by different information "
 "from the current tag. You can force renaming by checking the corresponding "
@@ -1638,7 +1638,7 @@ msgstr ""
 "sera supprimée, et tous les événements associés à l'étiquette {} seront "
 "associés à l'étiquette {}."
 
-#: agenda_culturel/views.py:2900
+#: agenda_culturel/views.py:2903
 msgid ""
 "This tag {} is already in use. You can force renaming by checking the "
 "corresponding option."
@@ -1646,21 +1646,24 @@ msgstr ""
 "Cette étiquette {} est déjà utilisée. Vous pouvez forcer le renommage en "
 "cochant l'option correspondante."
 
-#: agenda_culturel/views.py:2933
+#: agenda_culturel/views.py:2936
 msgid "The tag {} has been successfully renamed to {}."
 msgstr "L'étiquette {} a été renommée avec succès en {}."
 
-#: agenda_culturel/views.py:2975
+#: agenda_culturel/views.py:2978
 msgid "The tag {} has been successfully deleted."
 msgstr "L'événement {} a été supprimé avec succès."
 
-#: agenda_culturel/views.py:3001
+#: agenda_culturel/views.py:3004
 msgid "Cache successfully cleared."
 msgstr "Le cache a été vidé avec succès."
 
-#: agenda_culturel/views.py:3016
+#: agenda_culturel/views.py:3019
 msgid "Your user profile has been successfully modified."
 msgstr "Votre profil utilisateur a été modifié avec succès."
 
+#~ msgid "standard deviation"
+#~ msgstr "écart-type"
+
 #~ msgid "la cour des 3 coquins"
 #~ msgstr "la cour des 3 coquins"
diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 24aa296..fb2bbe5 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -42,6 +42,8 @@ from icalendar import Event as icalEvent
 from location_field.models.spatial import LocationField
 from django.dispatch import receiver
 from django.db.models.signals import post_save
+from django.db.models.aggregates import StdDev
+from django.db.models import Avg, Max, Min
 
 from .calendar import CalendarDay
 from .import_tasks.extractor import Extractor
@@ -49,9 +51,24 @@ from .import_tasks.generic_extractors.fbevent import (
     CExtractor as FacebookEventExtractor,
 )
 
+from django.db.models import Aggregate, FloatField
+
 logger = logging.getLogger(__name__)
 
 
+class Median(Aggregate):
+    function = "PERCENTILE_CONT"
+    name = "median"
+    output_field = FloatField()
+    template = "%(function)s(0.5) WITHIN GROUP (ORDER BY %(expressions)s)"
+
+
+#
+#
+# Useful for translation
+to_be_translated = [_("mean"), _("median"), _("maximum"), _("minimum"), _("stdev")]
+
+
 class UserProfile(models.Model):
     user = models.OneToOneField(
         User,
@@ -2728,26 +2745,38 @@ class RecurrentImport(models.Model):
         else:
             return None
 
-    def get_foresight_quality(self):
-        from statistics import median, mean, stdev
+    def _get_foresight_quality_internal(qs):
+        limit = datetime.now() + timedelta(days=-30)
 
-        values = [
-            x["foresight"]
-            for x in Event.objects.filter(import_sources__contains=[self.source])
-            .annotate(foresight=ExtractDay(F("start_day") - F("created_date")))
-            .values("foresight")
-        ]
-        if len(values) == 0:
-            return []
-        result = [
-            [_("minimum"), min(values)],
-            [_("maximum"), max(values)],
-            [_("mean"), round(mean(values), 2)],
-            [_("median"), median(values)],
-        ]
-        if len(values) > 2:
-            result.append([_("standard deviation"), round(stdev(values), 2)])
-        return result
+        qs = qs.filter(start_day__gte=F("created_date")).annotate(
+            foresight=ExtractDay(F("start_day") - F("created_date"))
+        )
+
+        stats = qs.filter().aggregate(
+            minimum=Min("foresight"),
+            maximum=Max("foresight"),
+            mean=Avg("foresight"),
+            median=Median("foresight"),
+            stdev=StdDev("foresight"),
+        )
+
+        statsm = qs.filter(created_date__gte=limit).aggregate(
+            minimum=Min("foresight"),
+            maximum=Max("foresight"),
+            mean=Avg("foresight"),
+            median=Median("foresight"),
+            stdev=StdDev("foresight"),
+        )
+
+        return [[_(x), round(stats[x], 2), round(statsm[x], 2)] for x in stats]
+
+    def get_global_foresight_quality():
+        return RecurrentImport._get_foresight_quality_internal(Event.objects)
+
+    def get_foresight_quality(self):
+        return RecurrentImport._get_foresight_quality_internal(
+            Event.objects.filter(import_sources__contains=[self.source])
+        )
 
 
 class BatchImportation(models.Model):
diff --git a/src/agenda_culturel/templates/agenda_culturel/page-rimport.html b/src/agenda_culturel/templates/agenda_culturel/page-rimport.html
index 2c5b021..6d6bfbb 100644
--- a/src/agenda_culturel/templates/agenda_culturel/page-rimport.html
+++ b/src/agenda_culturel/templates/agenda_culturel/page-rimport.html
@@ -90,7 +90,9 @@
             <h2>Qualité de l'anticipation</h2>
             <p>
               On s'intéresse à la différence entre la date de publication d'un événement et la date effective de l'événement. Plus le nombre de jours qui les sépare est élevé, plus
-              la source anticipe ses événements, et peut être considérée comme une source fiable.
+              la source anticipe ses événements, et peut être considérée comme une source fiable. On ignore les événements ajoutés à l'agenda alors que l'événement a déjà eu lieu.
+              On affiche cette information pour les imports depuis le début de son
+              intégration à l'agenda, mais aussi pour le dernier mois.
             </p>
             <table>
               <thead>
@@ -99,9 +101,13 @@
               </thead>
               <tbody>
                 <tr>
-                  <th class="label">Nb jours</th>
+                  <th class="label">écart (en jours)</th>
                   {% for v in stat %}<th>{{ v.1 }}</th>{% endfor %}
                 </tr>
+                <tr>
+                  <th class="label">écart du dernier mois (en jours)</th>
+                  {% for v in stat %}<th>{{ v.2 }}</th>{% endfor %}
+                </tr>
               </tbody>
             </table>
           {% endif %}
diff --git a/src/agenda_culturel/templates/agenda_culturel/statistics.html b/src/agenda_culturel/templates/agenda_culturel/statistics.html
index 11ca602..dbee465 100644
--- a/src/agenda_culturel/templates/agenda_culturel/statistics.html
+++ b/src/agenda_culturel/templates/agenda_culturel/statistics.html
@@ -42,6 +42,29 @@
       On retrouve une synthèse par mois du tableau précédent, sous forme d'une moyenne du nombre de création d'événements par jour pour chaque mois.
     </p>
     {% include "agenda_culturel/statistics_per_month.html" with data=stats_months_by_creation %}
+    <h2>Qualité de l'anticipation</h2>
+    <p>
+      On s'intéresse à la différence entre la date de publication d'un événement et la date effective de l'événement. Plus le nombre de jours qui les sépare est élevé, plus
+      les sources anticipent leurs événements. On ignore les événements ajoutés à l'agenda alors que l'événement a déjà eu lieu.
+      On affiche cette information pour les imports depuis le début de leur
+      intégration à l'agenda, mais aussi pour le dernier mois.
+    </p>
+    <table>
+      <thead>
+        <th class="label"></th>
+        {% for v in stats_foresight %}<th>{{ v.0 }}</th>{% endfor %}
+      </thead>
+      <tbody>
+        <tr>
+          <th class="label">écart (en jours)</th>
+          {% for v in stats_foresight %}<th>{{ v.1 }}</th>{% endfor %}
+        </tr>
+        <tr>
+          <th class="label">écart du dernier mois (en jours)</th>
+          {% for v in stats_foresight %}<th>{{ v.2 }}</th>{% endfor %}
+        </tr>
+      </tbody>
+    </table>
     <h2>Par ville</h2>
     <p>Nombre d'événements référencés par ville.</p>
     <ul>
diff --git a/src/agenda_culturel/views.py b/src/agenda_culturel/views.py
index ceed713..30b73ca 100644
--- a/src/agenda_culturel/views.py
+++ b/src/agenda_culturel/views.py
@@ -2816,6 +2816,8 @@ def statistics(request):
         .order_by("-total")
     )
 
+    stats_foresight = RecurrentImport.get_global_foresight_quality()
+
     context = {
         "stats_by_startday": stats["start_day"],
         "stats_by_creation": stats["created_date__date"],
@@ -2826,6 +2828,7 @@ def statistics(request):
         "first_by_creation": first["created_date__date"],
         "last_by_creation": last["created_date__date"],
         "nb_by_city": nb_by_city,
+        "stats_foresight": stats_foresight,
     }
     return render(request, "agenda_culturel/statistics.html", context)