fix a bug

helper/statistics_helper.php

@@ -99,9 +99,8 @@ class statistics_helper
                     {
                         if(empty($oper['count'])) {
                             $oper['count'] = 0;
-                        } else {
-                            $oper['count'] += intval($value);
                         }
+                        $oper['count'] += intval($value);
                     }
                 }
             }