The main points below are drawn from the latest Office for National Statistics bulletin as well as our additional analysis of a pooled dataset which combines 3 years of Annual Population Survey data.
Mae'r pwyntiau isod wedi eu tynnu o'r bwletin diweddaraf yn ogystal â'n dadansoddiad ychwanegol o set ddata cyfun sy'n cynnwys 3 blynedd o ddata'r Arolwg Blynyddol o'r Boblogaeth.