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Hidlo yn ôl (8 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 01/08/2010
pdf, 1.89 MB Added 01/08/2010
Adroddiad thematig | 01/06/2010
pdf, 1.36 MB Added 01/06/2010
Adroddiad thematig | 01/07/2009
pdf, 277.36 KB Added 01/07/2009
Adroddiad thematig | 01/07/2008
pdf, 320.91 KB Added 01/07/2008
Adroddiad thematig | 01/05/2008
pdf, 380.86 KB Added 01/05/2008
Adroddiad thematig | 01/05/2008
pdf, 373.87 KB Added 01/05/2008
Adroddiad thematig | 01/03/2008
pdf, 239.09 KB Added 01/03/2008