Oracle Report with Subtotal totals

Select
Case when (grouping (GLBM) =1) Then ' total ' else DECODE (Glbm,null, ', GLBM) end GLBM,
Case when (grouping (HPZL) =1) Then ' else DECODE (hpzl,null, ' ', Hpzl ') End HPZL,
Case is (grouping (SYXZ) =1 and Grouping (HPZL) =0) Then ' subtotal ' else DECODE (syxz,null, ' ', Syxz ') end as SYXZ,
COUNT (*)
From Vehicleba
where Hpzl in (' ywlx= ', ' A ', ' "') ' and (' register ' or ywlx= ')
GROUP BY rollup (GLBM,HPZL,SYXZ)

Oracle Report with Subtotal totals