service_id,date,exception_type
1_merged_485018,20170807,2
1_merged_485018,20170522,2
1_merged_485015,20170414,2
1_merged_485015,20170220,2
3_merged_485019,20170701,1
3_merged_485019,20170807,1
3_merged_485019,20170522,1
3_merged_485016,20170414,1
3_merged_485016,20170220,1
2_merged_485020,20170701,2