Further information regarding the statistics can be obtained by contacting the relevant staff detailed on this article/headline or via stats.healthinfo@gov.wales.
I gael mwy o wybodaeth am yr ystadegau, cysylltwch â’r staff perthnasol y ceir eu manylion yn yr erthygl/pennawd hwn neu drwy ystadegau.iechyd@llyw.cymru.