customer	product	thedate	value
customer 01
customer 01	product 01	30.10.2017	974.70
customer 01	product 02	04.12.2017	634.50
customer 01	product 03	30.10.2017	974,57
customer 01	product 04	04.12.2017	974,57
customer 01	product 05	30.10.2017	974,57
customer 01	product 06	30.10.2017	974,57
customer 01	product 07	30.10.2017	974,57
customer 02
customer 02	product 01	30.10.2017	974.70
customer 02	product 02	04.12.2017	634.50
customer 02	product 03	30.10.2017	974,57
customer 02	product 04	04.12.2017	974,57
customer 02	product 05	30.10.2017	974,57
customer 03
customer 03	product 01	30.10.2017	974.70
customer 03	product 02	04.12.2017	634.50
customer 03	product 03	30.10.2017	974,57
customer 03	product 04	04.12.2017	974,57
customer 03	product 05	30.10.2017	974,57
customer 03	product 06	30.10.2017	974,57
customer 03	product 07	30.10.2017	974,57