In January 2021, the median waiting time was 2 hours 31 minutes, down from 2 hours 44 minutes in December 2020 and down from 2 hours 32 minutes in January 2020.
Ym mis Chwefror 2021, canolrif yr amser aros oedd 2 awr a 30 munud, i fyny ychydig o 2 awr 31 munud ym mis Ionawr 2021 ond i lawr o 2 awr a 29 munud ym mis Chwefror 2020.