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Hidlo yn ôl (5 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 23/03/2021
pdf, 760.12 KB Added 23/03/2021
Adroddiad thematig | 28/01/2021
pdf, 2.23 MB Added 28/01/2021
Adroddiad thematig | 20/05/2019
pdf, 1.4 MB Added 20/05/2019
Adroddiad thematig | 01/10/2015
pdf, 546.81 KB Added 01/10/2015