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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 22 July 2026 | Cyfres amser
Rhyddhawyd ar: 10 December 2014 | Cyfres amser
Rhyddhawyd ar: 7 July 2021 | Bwletin ystadegol
Regional output per hour and output per job, and an experimental analysis of the performance of output per hour levels and growth by industry and region.
