The proportion of all calls that were immediately life-threatening (red calls) was also the second highest since call handling practices were updated in May 2019.
Cyfran yr holl alwadau lle’r oedd bywyd yn y fantol (galwadau coch) oedd yr ail uchaf hefyd ers i arferion ateb galwadau gael eu diweddaru ym mis Mai 2019.