SSAS 2012. MDX. Элементы, по которым происходит Aggregate

[CSV][/CSV]
WITH
  SET [AC] as {[Customer].[Country].&[Australia], [Customer].[Country].&[Canada]}
  SET [FG] as {[Customer].[Country].&[France], [Customer].[Country].&[Germany]}
  MEMBER [Customer].[Country].[AC] as Aggregate([AC]) 
  MEMBER [Customer].[Country].[FG] as Aggregate([FG]) 
  MEMBER [Список городов] as 
  GENERATE(EXISTS(EXISTING [Customer].[Country].[Country], ([Measures].[Internet Sales Amount])), [Customer].[Country].CurrentMember.Name,  ',')
SELECT 
  {[Список городов], [Measures].[Internet Sales Amount], [Measures].[Customer Count]} ON 0,
  {[Customer].[Country].[AC], [Customer].[Country].[FG]} ON 1 
FROM [Adventure Works]