*

@@ -48,12 +48,14 @@ class MusicianIncomeService extends Service
         foreach ($months as $month) {
             if (!isset($stat_income[$month])) {
                 $stat_income[$month] = [
-                    'month' => $month,
+                    'month' => intval($month),
                     'income'=> 0.00
                 ];
             }
         }
 
+        ksort($stat_income);
+
         return Response::success(['list'=>array_values($stat_income), 'total_income'=>$total_income]);
     }