service_id,date,exception_type
mtwtf,20160101,2
mtwtf,20160118,2
mtwtf,20160215,2
mtwtf,20160530,2
mtwtf,20160704,2
mtwtf,20160905,2
mtwtf,20161125,2
mtwtf,20161124,2
mtwtf,20161226,2
mtwtf,20170102,2
mtwtf,20170116,2
mtwtf,20170220,2
mtwtf,20170414,2
mtwtf,20170529,2
mtwtf,20170704,2
mtwtf,20170904,2