En MDX algo a lo largo de la línea:
with member [x] as sum(
[Date Dim].[CY Hierarchy].[Calendar Year].members(0) : [Date Dim].[CY Hierarchy].currentMember,
[Measures].[Commitment Count]
)
select [x] on 0, [Date Dim].[CY Hierarchy].[Calendar Year] on 1 from [Cube]