Whilst Treasury provided some indicative figures for Wales in May 2012, these figures were significantly lower than the previous estimates they provided.
Er bod y Trysorlys wedi darparu rhai ffigurau dangosol ar gyfer Cymru ym mis Mai 2012, roedd y ffigurau hynny yn sylweddol is na’r amcangyfrifon blaenorol a ddarparwyd ganddynt.