Aneurin Bevan had the highest number of green calls per 10,000 population (362 calls) in 2022-23 and Cwm Taf Morgannwg had the fewest, at 233 calls.
Bwrdd Iechyd Aneurin Bevan oedd â'r nifer uchaf o alwadau gwyrdd am bob 10,000 o'r boblogaeth (362 galwad) yn 2022-23 a Chwm Taf Morgannwg oedd â'r nifer lleiaf, sef 233 o alwadau.