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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 13 September 2021 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 2 August 2024 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 6 February 2026 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 4 June 2018 | Gwybodaeth gorfforaethol
Released: 4 June 2018
Rhyddhawyd ar: 10 July 2019 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 27 September 2018 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 2 November 2018 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 3 July 2018 | Data a gyrchwyd gan y defnyddiwr
Rhyddhawyd ar: 7 February 2017 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 19 January 2023 | Methodoleg
A guide to the two types of life table – cohort and period – used to calculate past and projected life expectancy.
