The percentage of red calls receiving a response within 8 minutes fell in December 2020 and the 65% target was not met for a fifth consecutive month.
Gostyngodd canran y galwadau coch a dderbyniodd ymateb o fewn 8 munud ym mis Rhagfyr 2020 ac ni chyrhaeddwyd y targed o 65% am y pumed mis yn olynol.