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Hidlo yn ôl (7 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 13/10/2022
pdf, 1.18 MB Added 13/10/2022
Adroddiad thematig | 15/01/2021
pdf, 1.35 MB Added 15/01/2021
Adroddiad thematig | 16/01/2020
pdf, 731.93 KB Added 16/01/2020
Adroddiad thematig | 12/06/2019
pdf, 2.01 MB Added 12/06/2019
Adroddiad thematig | 17/05/2018
pdf, 940.23 KB Added 17/05/2018
Adroddiad thematig | 01/10/2014
pdf, 644.94 KB Added 01/10/2014