Due to a processing error, data relating to hotels with 51 to 100 rooms for 2018 and 2019 have been revised since this report was published.
Yn sgil gwall prosesu mae’r data ynghylch gwestai sydd â rhwng 51 a 100 o ystafelloedd ar gyfer 2018 a 2019 wedi’u diwygio yn y cyhoeddiad hwn.