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Hidlo yn ôl (6 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 27/04/2022
pdf, 395.05 KB Added 27/04/2022
Adroddiad thematig | 10/02/2022
pdf, 2.11 MB Added 10/02/2022
Adroddiad thematig | 19/10/2021
pdf, 974.77 KB Added 19/10/2021
Adroddiad thematig | 20/12/2018
pdf, 682.96 KB Added 20/12/2018
Adroddiad thematig | 17/07/2018
pdf, 1.43 MB Added 17/07/2018