service_id,exception_type,date
D,1,20200101
D,1,20200501
D,1,20200916
D,1,20201225
D,1,20210101
D,1,20210501
D,1,20210916
D,1,20211225
D,1,20220101
LV,2,20200501
LV,2,20200916
LV,2,20201225
LV,2,20210101
LV,2,20210916
S,2,20210501
S,2,20211225
S,2,20220101
