How to get Subtotals(record count) in a Customised Report

How to get Subtotals(record count) in a Customised Report

Hi.
 Is it possible to get the subtotals (count of records under each group) in a customised report. I am trying to fetch the details as below and is trying to get the record count under the groups 'Closed', 'Open' etc. (Something like a matrix to get the counts,)
 
 
Priority
 Closed
(P4) Low
(P4) Low
 Open
(P3) Medium
(P4) Low
(P3) Medium
(P3) Medium
(P3) Medium

 
Thnx,
SreeJan

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