We estimate around 100 higher rates and 10 non-residential transactions within those December 2020 data were charged at the post 22 December rates.
Rydym yn amcangyfrif bod tua 100 o drafodiadau cyfraddau uwch a 10 o drafodiadau amhreswyl o fewn y data mis Rhagfyr 2020 hynny eu cyhuddo ar y cyfraddau ar ôl 22 Rhagfyr.