service_id,date,exception_type
mtwtf,20180101,2
mtwtf,20180115,2
mtwtf,20180219,2
mtwtf,20180528,2
mtwtf,20180704,2
mtwtf,20180903,2
mtwtf,20181112,2
mtwtf,20181122,2
mtwtf,20181225,2
