More in depth analysis of many of these topics are available through the range of statistical releases published by Welsh Government, the Office for National Statistics or other statistical producers.
Mae dadansoddiad manylach o lawer o’r pynciau hyn ar gael drwy’r amrywiaeth o ddatganiadau ystadegol a gyhoeddwyd gan Lywodraeth Cymru, y Swyddfa Ystadegau Gwladol neu gynhyrchwyr ystadegol eraill.