service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
WKDY,1,1,1,1,1,0,0,20250101,20251231
WKND,0,0,0,0,0,1,1,20250101,20251231
MONTHU,1,1,1,1,0,0,0,20250101,20251231
