The local authorities with the lowest number of sales were Blaenau Gwent (1 dwelling), Merthyr Tydfil (1 dwelling), Isle of Anglesey (2 dwellings) and Wrexham (3 dwellings).
Y awdurdodau lleol â'r nifer isaf o werthiannau oedd Castell-nedd Port Talbot (dwy annedd), Merthyr Tudful (tair annedd), Powys a Gwynedd (pedair annedd yr un).