Application does not consider Employement date in ALE Report

Step:-
1.Login to application using partner credential.
2.Add new employee with employment Type- Part Tine , Employment Date - 02/01/2015
3.Now navigate to ALE report.
4.Select below search criteria
From date- 01/01/2015 To date - 01/31/2015
Select other mandatory class of added Part Time EE and click on Preview

Actual - Application display Part Time employee count in UI

Expected - It should not display Part Time EE count in UI