order

@@ -29,7 +29,7 @@ class AdminStatisticsController extends AdminBaseController{
 
         $week=array();
         for ($i = 0; $i <= 15; $i++){
-            $week[30-$i]=strtotime(date('Ymd',strtotime("-$i week")));
+            $week[15-$i]=strtotime(date('Ymd',strtotime("-$i week")));
         }