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Data a dadansoddiadau o Gyfrifiad 2021
We moved them to The National Archives website, to keep this website as responsive as possible.
Please note: all historical data is still on this website.
Data a gyrchwyd gan y defnyddiwr | Released on 15 January 2014 | Ref: 002191
Data a gyrchwyd gan y defnyddiwr | Released on 30 September 2013 | Ref: 000109
Data a gyrchwyd gan y defnyddiwr | Released on 9 May 2013 | Ref: 000047