diff --git a/statistiques/parseStats.py b/statistiques/parseStats.py
index 180d667..4a4e03b 100755
--- a/statistiques/parseStats.py
+++ b/statistiques/parseStats.py
@@ -82,14 +82,12 @@ class Stats:
         return octets,unit
 
     def parse(self):
-        res = None
-        while res is None:
-            res = self.db.dbQuery(f"""SELECT * FROM {dbName} WHERE timestamp > {self.startDate} AND timestamp < {self.endDate} ORDER by id""")
-            if res is None:
-                time.sleep(60)
-        #if res is None:
-        #    sys.exit('Traitement en cours, base de données indisponible')
-
+        tot_part_start = tot_part_end = 0
+        res = self.db.dbQuery(f"""SELECT value_field FROM {dbName} WHERE timestamp = {self.startDate} AND key_field = 'total_participants' ORDER by id""")
+        print(res)
+        res = self.db.dbQuery(f"""SELECT value_field FROM {dbName} WHERE timestamp = {self.endDate} AND key_field = 'total_participants' ORDER by id""")
+        print(res)
+        res = self.db.dbQuery(f"""SELECT * FROM {dbName} WHERE timestamp > {self.startDate} AND timestamp < {self.endDate} ORDER by id""")
         consolided = {}
         moy_conf_by_day = 0
         for line in res:
@@ -158,13 +156,17 @@ class SQLite:
         self.conn.close()
 
     def dbQuery(self,query='SELECT'):
-        try:
-            self.__openDb()
-            self.cursor.execute(query)
-            rows = self.cursor.fetchall()
-            self.__closeDb()
-        except sqlite3.OperationalError:
-            rows = None
+        rows = None
+        while rows is None:
+            try:
+                self.__openDb()
+                self.cursor.execute(query)
+                rows = self.cursor.fetchall()
+                self.__closeDb()
+            except sqlite3.OperationalError:
+                rows = None
+                time.sleep(30)
+                
         return rows
 
     def dbInsert(self,ts,k,v):