[Note 1]: Betsi Cadwaladr did not submit data for April 2020, so are not included in the Wales figures for this month.
[Nodyn 1]: Ni wnaeth Betsi Cadwaladr gyflwyno data ar gyfer mis Ebrill 2020, felly nid ydynt wedi’u cynnwys yn ffigurau Cymru ar gyfer y mis hwn.