The allocations in respect of 2013-14 and 2014-15 are subject to revision in the light of the more up-to-date tax base and other relevant data.
Gallai’r dyraniadau mewn perthynas â 2013-14 a 2014-15 gael eu diwygio yng ngoleuni'r sylfaen drethi fwy cyfoes a data perthnasol arall.