Split tables for the stats (#6)

Reviewed-on: #6
Co-authored-by: sandre <perso@sebastienandre.com>
Co-committed-by: sandre <perso@sebastienandre.com>

Back/skydiveLogs-api.DomainBusiness/Interfaces/IStatsForLastYearByDzService.cs

@@ -0,0 +1,16 @@
+using skydiveLogs_api.Domain;
+using System.Collections.Generic;
+
+namespace skydiveLogs_api.DomainBusiness.Interfaces
+{
+    public interface IStatsForLastYearByDzService
+    {
+        #region Public Methods
+
+        IEnumerable<StatsForLastYearByDz> GetStats();
+
+        void Reset();
+
+        #endregion Public Methods
+    }
+}