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Hidlo yn ôl (6 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 10/02/2022
pdf, 2.11 MB Added 10/02/2022
Adroddiad thematig | 11/03/2020
pdf, 791.2 KB Added 11/03/2020
Adroddiad thematig | 12/02/2020
pdf, 1.08 MB Added 12/02/2020
Adroddiad thematig | 08/11/2018
pdf, 1.14 MB Added 08/11/2018
Adroddiad thematig | 21/09/2017
pdf, 952.04 KB Added 21/09/2017