Source excel file
					Mirror 1
					Mirror 2
					idle days of new employee
					daily customers per support employee
					daily default nb. of customers
					number of collected customers during the month
Day of the month	inflow of new employees	inflow of contributing employees	nb. of new working employees in the company	daily nb. of customers due to new employees	total daily nb. of customers	nb. of customers since the begining of the month (MTD)