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Hidlo yn ôl (5 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 05/10/2022
pdf, 2.91 MB Added 05/10/2022
Adroddiad thematig | 27/04/2022
pdf, 395.05 KB Added 27/04/2022
Adroddiad thematig | 15/10/2020
pdf, 3.47 MB Added 15/10/2020
Adroddiad thematig | 20/12/2018
pdf, 682.96 KB Added 20/12/2018