order

@@ -28,7 +28,7 @@ class AdminStatisticsController extends AdminBaseController{
     public function index(){
 
         $week=array();
-        for ($i = 0; $i <= 30; $i++){
+        for ($i = 0; $i <= 15; $i++){
             $week[30-$i]=strtotime(date('Ymd',strtotime("-$i week")));
         }