diff --git a/AIParkingApplication/AppConstant.cs b/AIParkingApplication/AppConstant.cs
index 35d9780..e447052 100644
--- a/AIParkingApplication/AppConstant.cs
+++ b/AIParkingApplication/AppConstant.cs
@@ -9,7 +9,5 @@
         #endregion
 
         public const string CAMERA_FAILED_IMAGE_PATH = @"Images\CantConnectCamera.jpg";
-
-        public const int TIME_TO_GET_STATISTIC_INFO = 60;
     }
 }
diff --git a/AIParkingApplication/Statistic.cs b/AIParkingApplication/Statistic.cs
index d5b598d..feb5142 100644
--- a/AIParkingApplication/Statistic.cs
+++ b/AIParkingApplication/Statistic.cs
@@ -10,6 +10,7 @@ namespace AIParkingApplication
     {
         private readonly HttpClient client;
         private readonly Thread thrStatistics;
+        private int timeCycle;
 
         Label lblLoaiXe;
         Label lblXeMay;
@@ -18,9 +19,10 @@ namespace AIParkingApplication
         Label lblSoLuongXeMay;
         Label lblSoLuongOto;
 
-        public Statistic(string apiUrl)
+        public Statistic(string apiUrl, int timeCycle_Sec = 1)
         {
             InitializeComponent();
+            timeCycle = timeCycle_Sec; ;
             client = new HttpClient { BaseAddress = new Uri(apiUrl), Timeout = TimeSpan.FromMilliseconds(5000) };
             thrStatistics = new Thread(new ThreadStart(GetStatistic)) { IsBackground = true };
             thrStatistics.Start();
@@ -31,7 +33,7 @@ namespace AIParkingApplication
             while (true)
             {
                 GETDataFromServer();
-                Thread.Sleep(AppConstant.TIME_TO_GET_STATISTIC_INFO * 1000);
+                Thread.Sleep(timeCycle * 1000);
             }
         }