Stock ageing report in BI

Dear Friends

I have requirement were we need to createa stock ageing report in age buckets like below .

Material 0-30 31-60 61- 90 91-120 >120

ABC - 17 - - -

BBB - 60 - -

I tried to find the soultion in forums but i could not give any proper solutions . can anyone shed some light on this . this is very imp for some many others also . please do provide a solution . how we can achevie this query .

Thnaks

raghu