SQL Group With Group Total

SELECT isnull(WO_status,0) as WO_status,
(case  when MwO.WO_status=1 then 'Open' when MwO.WO_status=2 then 'Close' when MWO.WO_status=3 Then  'Short Close'
when MwO.WO_status=4 then 'Cancel'
 else 'Total' end) as statusR,
count(*) as countValue
FROM   M_WorkOrder MwO
 inner join    M_WorkorderDetails MwOd  on MwO.WOID=MwOd.WOD_WOID
INNER join BILL_KEYWORD BK  on BK.id=MwOd.WOD_KEYID
INNER join billing_from bf      on bf.id=MwO.WO_CID
 where  (MwOd.WOD_CUserID=15 or 15 =0 )
 group by WO_status  WITH ROLLUP