In April 2021, the median waiting time was 2 hours 37 minutes, up from 2 hours 31 minutes in March 2021 and up from 1 hours 48 minutes in April 2020.
Ym mis Mai 2021, canolrif yr amser aros oedd 2 awr a 47 munud, i fyny o 2 awr 38 munud ym mis Ebrill 2021 ac i fyny o 1 awr a 53 munud ym mis Mai 2020.