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Hidlo yn ôl (8 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 20/12/2018
pdf, 682.96 KB Added 20/12/2018
Adroddiad thematig | 22/09/2016
pdf, 1.1 MB Added 22/09/2016
Adroddiad thematig | 19/07/2016
pdf, 1.45 MB Added 19/07/2016
Adroddiad thematig | 01/11/2014
pdf, 526.02 KB Added 01/11/2014
Adroddiad thematig | 01/06/2014
pdf, 659.67 KB Added 01/06/2014
Adroddiad thematig | 01/06/2013
pdf, 758.13 KB Added 01/06/2013
Adroddiad thematig | 01/06/2013
pdf, 743.13 KB Added 01/06/2013