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Hidlo yn ôl (5 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 12/07/2018
pdf, 971.48 KB Added 12/07/2018
Adroddiad thematig | 15/09/2016
pdf, 621.61 KB Added 15/09/2016
Adroddiad thematig | 10/06/2015
pdf, 963.55 KB Added 10/06/2015
Adroddiad thematig | 01/09/2013
pdf, 694.84 KB Added 01/09/2013