service_id, date, exception_type
E1, 20150904, 1
D1, 20150904, 2
F3, 20150927, 1
F4, 20150927, 1
D3, 20150927, 2
D4, 20150927, 2
D4, 20150907, 1
D3, 20150907, 1
D1, 20150907, 2