diff --git a/src/notion/fetch/fetchFamiliesWithEventsFromNotion.ts b/src/notion/fetch/fetchFamiliesWithEventsFromNotion.ts
index 8879196..bd2e50d 100644
--- a/src/notion/fetch/fetchFamiliesWithEventsFromNotion.ts
+++ b/src/notion/fetch/fetchFamiliesWithEventsFromNotion.ts
@@ -2,7 +2,7 @@ import { Client, isFullPage } from "@notionhq/client";
 import { PageObjectResponse } from "@notionhq/client/build/src/api-endpoints";
 import { Family, FamilyEvent, StatutFamille } from "../../data/Family";
 import { datePropertyToDate } from "../utils/properties/datePropertyToDate";
-import { relationPropertyToPageId } from "../utils/properties/relationPropertyToPAgeId";
+import { relationPropertyToPageId } from "../utils/properties/relationPropertyToPageId";
 import { selectPropertyToText } from "../utils/properties/selectPropertyToText";
 import { statusPropertyToText } from "../utils/properties/statusPropertyToText";
 import { titlePropertyToText } from "../utils/properties/titlePropertyToText";
diff --git a/src/notion/publish/publishStatisticsToNotion.ts b/src/notion/publish/publishStatisticsToNotion.ts
index cc1083b..52fabca 100644
--- a/src/notion/publish/publishStatisticsToNotion.ts
+++ b/src/notion/publish/publishStatisticsToNotion.ts
@@ -1,5 +1,11 @@
 import { Client, isFullPage } from "@notionhq/client";
-import { ELPeriodStats, ELStats } from "../../statistiques/ELStats";
+import { PageObjectResponse } from "@notionhq/client/build/src/api-endpoints";
+import {
+  ELPeriodStats,
+  ELStats,
+  ValueWithEvol,
+} from "../../statistiques/ELStats";
+import { titlePropertyToText } from "../utils/properties/titlePropertyToText";
 import { queryAllDbResults } from "../utils/queryAllDbResults";
 import { removeBlocks } from "../utils/removeBlocks";
 import { publishCurrentStats } from "./publishCurrentStats";
@@ -30,42 +36,106 @@ async function publishPeriodStats(
       database_id: periodStatsDbId,
     })
   ).filter(isFullPage);
-  await removeBlocks(
-    notionClient,
-    periodRows.map((r) => r.id)
+
+  const indexedPeriodRows: { [period: string]: PageObjectResponse } =
+    Object.fromEntries(
+      periodRows.map((r) => [titlePropertyToText(r.properties, "Période"), r])
+    );
+
+  const indexedPeriodStats = Object.fromEntries(
+    stats.map((stat) => [stat.periodId, stat])
   );
 
-  for (const stat of stats) {
+  const rowIdsToDelete = Object.entries(indexedPeriodRows)
+    .filter(
+      ([periodId]) =>
+        !Object.prototype.hasOwnProperty.call(indexedPeriodStats, periodId)
+    )
+    .map(([, row]) => row.id);
+
+  const periodIdsToUpdate = Object.entries(indexedPeriodRows)
+    .filter(([periodId]) =>
+      Object.prototype.hasOwnProperty.call(indexedPeriodStats, periodId)
+    )
+    .map(([periodId]) => periodId);
+
+  const periodIdsToCreate = Object.entries(indexedPeriodStats)
+    .filter(
+      ([periodId]) =>
+        !Object.prototype.hasOwnProperty.call(indexedPeriodRows, periodId)
+    )
+    .map(([periodId]) => periodId);
+
+  // Delete rows to delte
+  await removeBlocks(notionClient, rowIdsToDelete);
+
+  // Create rows to create
+  for (const periodId of periodIdsToCreate) {
+    const stat = indexedPeriodStats[periodId];
     await notionClient.pages.create({
       parent: {
         database_id: periodStatsDbId,
       },
-      properties: {
-        Période: {
-          title: [
-            {
-              text: {
-                content: stat.periodId,
-              },
-            },
-          ],
-        },
-        "Nb Famille Résistante": numberProp(stat.nbFamilleResistantes),
-        "Nb Famille Résistante - Evol": numberProp(
-          stat.nbFamilleResistantesEvol
-        ),
-        "Nb Famille Résistante - Evol %": numberProp(
-          stat.nbFamilleResistantesEvolPercent
-        ),
-      },
+      properties: buildRowPropertiesForUpsert(stat),
+    });
+  }
+
+  // Update rows
+  for (const periodId of periodIdsToUpdate) {
+    const stat = indexedPeriodStats[periodId];
+    const row = indexedPeriodRows[periodId];
+    await notionClient.pages.update({
+      page_id: row.id,
+      properties: buildRowPropertiesForUpsert(stat),
     });
   }
 }
 
-function numberProp(n: number): {
-  number: number;
-} {
+function buildRowPropertiesForUpsert(stat: ELPeriodStats) {
   return {
-    number: n,
+    Période: {
+      title: [
+        {
+          text: {
+            content: stat.periodId,
+          },
+        },
+      ],
+    },
+    "Nb Famille Résistante": valueWithEvolProp(stat.nbFamilleResistantes),
   };
 }
+
+function valueWithEvolProp(n: ValueWithEvol) {
+  const formatted = formatValueWithEvol(n);
+  return {
+    rich_text: [
+      {
+        text: {
+          content: formatted,
+        },
+      },
+    ],
+  };
+}
+function formatValueWithEvol(n: ValueWithEvol): string {
+  const value = n.value.toLocaleString("fr-FR", {
+    useGrouping: false,
+    maximumFractionDigits: 2,
+  });
+  if (isNaN(n.evol)) {
+    return value;
+  } else {
+    const evol = n.evol.toLocaleString("fr-FR", {
+      useGrouping: false,
+      maximumFractionDigits: 2,
+      signDisplay: "always",
+    });
+    const evolPercent = Math.round(n.evolPercent).toLocaleString("fr-FR", {
+      useGrouping: false,
+      signDisplay: "always",
+    });
+
+    return `${value} (${evol} | ${evolPercent}%)`;
+  }
+}
diff --git a/src/statistiques/ELStats.ts b/src/statistiques/ELStats.ts
index 15861b2..5f3ee95 100644
--- a/src/statistiques/ELStats.ts
+++ b/src/statistiques/ELStats.ts
@@ -13,7 +13,11 @@ export type ELStats = {
 
 export type ELPeriodStats = {
   periodId: string;
-  nbFamilleResistantes: number;
-  nbFamilleResistantesEvol: number;
-  nbFamilleResistantesEvolPercent: number;
+  nbFamilleResistantes: ValueWithEvol;
+};
+
+export type ValueWithEvol = {
+  value: number;
+  evol: number;
+  evolPercent: number;
 };
diff --git a/src/statistiques/computeELPeriodStats.ts b/src/statistiques/computeELPeriodStats.ts
index ad2572d..b0c1d5e 100644
--- a/src/statistiques/computeELPeriodStats.ts
+++ b/src/statistiques/computeELPeriodStats.ts
@@ -1,6 +1,6 @@
 import { Family, isResistantOverPeriod } from "../data/Family";
 import { IdentifiedPeriod } from "../period/IdentifiedPeriod";
-import { ELPeriodStats } from "./ELStats";
+import { ELPeriodStats, ValueWithEvol } from "./ELStats";
 
 export function computeELPeriodStats(
   familles: Family[],
@@ -15,14 +15,9 @@ export function computeELPeriodStats(
 
     const stats: ELPeriodStats = {
       periodId: period.id,
-      nbFamilleResistantes: resistantsCount,
-      nbFamilleResistantesEvol: evol(
+      nbFamilleResistantes: valueWithEvol(
         resistantsCount,
-        previousELPeriodStats?.nbFamilleResistantes
-      ),
-      nbFamilleResistantesEvolPercent: evolPercent(
-        resistantsCount,
-        previousELPeriodStats?.nbFamilleResistantes
+        previousELPeriodStats?.nbFamilleResistantes.value
       ),
     };
     periodStats.push(stats);
@@ -31,10 +26,22 @@ export function computeELPeriodStats(
   return periodStats;
 }
 
+function valueWithEvol(
+  value: number,
+  previous: number | undefined
+): ValueWithEvol {
+  return {
+    value: value,
+    evol: evol(value, previous),
+    evolPercent: evolPercent(value, previous),
+  };
+}
+
 function evolPercent(current: number, previous: number | undefined): number {
   if (previous === undefined) return NaN;
   return (100 * evol(current, previous)) / previous;
 }
+
 function evol(current: number, previous: number | undefined): number {
   if (previous === undefined) return NaN;
   return current - previous;