diff --git a/migrations/Version20250712121647.php b/migrations/Version20250712121647.php
new file mode 100644
index 00000000..2d6808d5
--- /dev/null
+++ b/migrations/Version20250712121647.php
@@ -0,0 +1,35 @@
+addSql(<<<'SQL'
+            ALTER TABLE place CHANGE email email VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE note note LONGTEXT CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE name name VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE note_content note_content VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE street street VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE housenumber housenumber VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE siret siret VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE osm_user osm_user VARCHAR(255) CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`, CHANGE email_content email_content LONGTEXT CHARACTER SET utf8mb4 DEFAULT NULL COLLATE `utf8mb4_0900_ai_ci`
+        SQL);
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql(<<<'SQL'
+            ALTER TABLE place CHANGE email email VARCHAR(255) DEFAULT NULL, CHANGE note note VARCHAR(255) DEFAULT NULL, CHANGE name name VARCHAR(255) DEFAULT NULL, CHANGE note_content note_content VARCHAR(255) DEFAULT NULL, CHANGE street street VARCHAR(255) DEFAULT NULL, CHANGE housenumber housenumber VARCHAR(255) DEFAULT NULL, CHANGE siret siret VARCHAR(255) DEFAULT NULL, CHANGE osm_user osm_user VARCHAR(255) DEFAULT NULL, CHANGE email_content email_content LONGTEXT DEFAULT NULL
+        SQL);
+    }
+}
diff --git a/src/Controller/FollowUpController.php b/src/Controller/FollowUpController.php
index 1e73ce03..2ed362ac 100644
--- a/src/Controller/FollowUpController.php
+++ b/src/Controller/FollowUpController.php
@@ -114,36 +114,61 @@ class FollowUpController extends AbstractController
         $themes = \App\Service\FollowUpService::getFollowUpThemes();
         $all_completion_data = [];
         $latest_diffs = [];
+        // Définir les bornes de période
+        $now = new \DateTime();
+        $periods = [
+            '7j' => (clone $now)->modify('-7 days'),
+            '30j' => (clone $now)->modify('-30 days'),
+            '6mois' => (clone $now)->modify('-6 months'),
+        ];
         foreach ($themes as $type => $label) {
             $all_completion_data[$type] = $series[$type . '_completion'] ?? [];
-            // Calcul du diff sur 7 jours pour le nombre et la complétion
             $count_series = $series[$type . '_count'] ?? [];
             $completion_series = $series[$type . '_completion'] ?? [];
-            $count_now = count($count_series) ? $count_series[count($count_series)-1]['value'] : null;
-            $count_7d = null;
-            foreach (array_reverse($count_series) as $point) {
-                $date = \DateTime::createFromFormat('Y-m-d', $point['date']);
-                if ($date && $date <= (new \DateTime('-7 days'))) {
-                    $count_7d = $point['value'];
-                    break;
+            // Fonction utilitaire pour trouver la valeur la plus proche avant ou égale à une date
+            $findValueAtOrBefore = function($series, \DateTime $date) {
+                $val = null;
+                foreach (array_reverse($series) as $point) {
+                    $ptDate = \DateTime::createFromFormat('Y-m-d', $point['date']);
+                    if ($ptDate && $ptDate <= $date) {
+                        $val = $point['value'];
+                        break;
+                    }
                 }
-            }
-            $completion_now = count($completion_series) ? $completion_series[count($completion_series)-1]['value'] : null;
-            $completion_7d = null;
-            foreach (array_reverse($completion_series) as $point) {
-                $date = \DateTime::createFromFormat('Y-m-d', $point['date']);
-                if ($date && $date <= (new \DateTime('-7 days'))) {
-                    $completion_7d = $point['value'];
-                    break;
-                }
-            }
+                return $val;
+            };
+            // Valeurs aux bornes
+            $val_now = count($count_series) ? $count_series[count($count_series)-1]['value'] : null;
+            $val_7j = $findValueAtOrBefore($count_series, $periods['7j']);
+            $val_30j = $findValueAtOrBefore($count_series, $periods['30j']);
+            $val_6mois = $findValueAtOrBefore($count_series, $periods['6mois']);
+            // Différences exclusives
+            $diff_7j = ($val_now !== null && $val_7j !== null) ? $val_now - $val_7j : null;
+            $diff_30j = ($val_7j !== null && $val_30j !== null) ? $val_7j - $val_30j : null;
+            $diff_6mois = ($val_30j !== null && $val_6mois !== null) ? $val_30j - $val_6mois : null;
+            // Idem pour la complétion
+            $comp_now = count($completion_series) ? $completion_series[count($completion_series)-1]['value'] : null;
+            $comp_7j = $findValueAtOrBefore($completion_series, $periods['7j']);
+            $comp_30j = $findValueAtOrBefore($completion_series, $periods['30j']);
+            $comp_6mois = $findValueAtOrBefore($completion_series, $periods['6mois']);
+            $comp_diff_7j = ($comp_now !== null && $comp_7j !== null) ? $comp_now - $comp_7j : null;
+            $comp_diff_30j = ($comp_7j !== null && $comp_30j !== null) ? $comp_7j - $comp_30j : null;
+            $comp_diff_6mois = ($comp_30j !== null && $comp_6mois !== null) ? $comp_30j - $comp_6mois : null;
             $latest_diffs[$type] = [
-                'count_now' => $count_now,
-                'count_7d' => $count_7d,
-                'count_diff' => ($count_now !== null && $count_7d !== null) ? $count_now - $count_7d : null,
-                'completion_now' => $completion_now,
-                'completion_7d' => $completion_7d,
-                'completion_diff' => ($completion_now !== null && $completion_7d !== null) ? $completion_now - $completion_7d : null,
+                'count_now' => $val_now,
+                'count_7j' => $val_7j,
+                'count_30j' => $val_30j,
+                'count_6mois' => $val_6mois,
+                'count_diff_7j' => $diff_7j,
+                'count_diff_30j' => $diff_30j,
+                'count_diff_6mois' => $diff_6mois,
+                'completion_now' => $comp_now,
+                'completion_7j' => $comp_7j,
+                'completion_30j' => $comp_30j,
+                'completion_6mois' => $comp_6mois,
+                'completion_diff_7j' => $comp_diff_7j,
+                'completion_diff_30j' => $comp_diff_30j,
+                'completion_diff_6mois' => $comp_diff_6mois,
                 'label' => $label,
             ];
         }
diff --git a/src/Entity/Place.php b/src/Entity/Place.php
index 9c7af8cb..86557f0d 100644
--- a/src/Entity/Place.php
+++ b/src/Entity/Place.php
@@ -31,7 +31,7 @@ class Place
     #[ORM\Column]
     private ?bool $dead = null;
 
-    #[ORM\Column(length: 255, nullable: true, options: ['charset' => 'utf8mb4'])]
+    #[ORM\Column(type: Types::TEXT, nullable: true, options: ['charset' => 'utf8mb4'])]
     private ?string $note = null;
 
     #[ORM\Column(nullable: true)]
diff --git a/templates/admin/followup_graph.html.twig b/templates/admin/followup_graph.html.twig
index afebede1..a5c46d8f 100644
--- a/templates/admin/followup_graph.html.twig
+++ b/templates/admin/followup_graph.html.twig
@@ -26,13 +26,15 @@
             
                 
                      
             
             Thème 
-                    Évolution du nombre 
-                    Évolution de la complétion 
+                    Évolution 7j 
+                    Évolution 30j 
+                    Évolution 6 mois 
                 
${k}Entrez le code INSEE de votre ville pour l'ajouter à notre base de données
-Aucun lieu modifié dans les 6 derniers mois.
{% endif %}