diff --git a/api/api_v1/endpoints/query.py b/api/api_v1/endpoints/query.py
index 4cd4b65..b8652a6 100644
--- a/api/api_v1/endpoints/query.py
+++ b/api/api_v1/endpoints/query.py
@@ -1703,17 +1703,20 @@ async def first_event_model(
         else:
             dict_k[key] = sum_num
 
+    list_data = []
     for i in step_list:
         if str(i) not in dict_k:
-            dict_k[str(i)] = 0
+            list_data.append(0)
+            continue
+        list_data.append(dict_k[str(i)])
 
-    all_num = sum(list(dict_k.values()))
-    p_data = {key: round(v * 100 / all_num, 2) for key, v in dict_k.items()}
+    all_num = sum(list_data)
+    p_data = [round(v * 100 / all_num, 2) for v in list_data]
 
     true_step = [str(i) for i in step_list]
     res_msg = {
         'level': true_step,
-        'list': dict_k,
+        'list': list_data,
         'p': p_data
     }
     return schemas.Msg(code=0, msg='ok', data=res_msg)