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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 20 April 2021 | Data a gyrchwyd gan y defnyddiwr
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Rhyddhawyd ar: 22 May 2013 | Bwletin ystadegol
Deaths caused by conditions such as heart disease and cancer, broken down by gender.
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Rhyddhawyd ar: 20 October 2016 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 21 January 2020 | Gwybodaeth gorfforaethol
