I want to modify my query so that it return total row count.

I want to modify to
return row count for this query

DECLARE @dCurrentTimeDATETIME

DECLARE @dCurrentTimeMinus5DATETIME

SET @dCurrentTime=GETDATE()

SET @dCurrentTimeMinus5=DATEADD(minute,-5, @dCurrentTime)

--Return lIDS for only sessions last accessed in the last 5 minutes

SELECT lID,MAX(dLastAccessed)

FROM SessionState_Variables

WHERE dLastAccessedBETWEEN @dCurrentTimeMinus5AND @dCurrentTime

GROUPBY lID

ORDERBY 2DESC