Figure 4: Unattributable population change as a percentage of the population for Wales and England, mid-2012 to mid-2021 [Note 1]
Ffigur 4: Newid amhriodoladwy yn y boblogaeth fel canran o'r boblogaeth ar gyfer Cymru a Lloegr, canol 2012 i ganol 2021 [Nodyn 1]