In January, February and March 2021, residential revenues have continued to rise to record levels, with the influence of main rates transactions increasing compared to previous quarters.
Yn Ionawr, Chwefror a Mawrth 2021, mae refeniw preswyl wedi parhau i godi i'r lefelau uchaf erioed, gyda dylanwad trafodiadau prif gyfraddau’n cynyddu o'i gymharu â chwarteri blaenorol.