Sut mae Llywodraeth Cymru yn adlewyrchu newid demograffig, fel y cynnydd yng nghyfran y boblogaeth yng Ngogledd Cymru 65 oed a throsodd o 18.3 y cant i 23.4 y cant rhwng 2000 a 2020, wrth gyfrifo Grant Cynnal Refeniw awdurdodau lleol/y rhan a glustnodir o gyllid Llywodraeth Cymru?
Within the local government settlement, the individual local authority shares of the population data which determine the relative distribution of funding across Wales are updated annually. For the 2022-23 settlement, the 2018-based 2022 population projections were used to distribute the settlement funding.
The weightings of each age cohort which distribute the funding at an all-Wales level are fixed until such a time as the formulae are re-visited and the weightings re-calibrated. In recent years, local government has favoured stability in the formula over continuous, rolling review.