service_id,date,exception_type SN01272009,20090525,1 SN01272009,20090704,1 SN01272009,20090907,1 SN01272009,20091126,1 SN01272009,20091225,1 ST01272009,20090704,2 WD01272009,20090525,2 WD01272009,20090907,2 WD01272009,20091126,2 WD01272009,20091225,2