Ym mis Mehefin, cyrhaeddodd cyfanswm o 77.1% o ymatebion brys i salwch neu anaf lle mae bywyd yn y fantol, sef galwadau coch, o fewn wyth munud. Roedd hyn yn uwch na'r targed o 65%, ac i fyny o 75.5% ym mis Mai 2016.  Yr ymateb safonol i'r math hwn o gleifion oedd 5 munud ac 1 eiliad.
In June, a total of 77.1% of emergency responses to an immediately life-threatening illness or injury, known as red calls, arrived within eight minutes, above the target of 65%, and up from 75.5% in May 2016. The standard response to this type of patients was just 5 minutes and 1 second.