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Hidlo yn ôl (78 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 01/10/2013
pptx, 356.95 KB Added 01/10/2013
Adroddiad thematig | 01/11/2012
pdf, 1022.01 KB Added 01/11/2012
Adroddiad thematig | 01/06/2011
pdf, 544.37 KB Added 01/06/2011
Adroddiad thematig | 01/04/2010
pdf, 1002.66 KB Added 01/04/2010
Adroddiad thematig | 01/03/2010
pdf, 1.27 MB Added 01/03/2010
Adroddiad thematig | 01/07/2009
pdf, 548.65 KB Added 01/07/2009
Adroddiad thematig | 31/05/2008
pdf, 565.77 KB Added 31/05/2008