Data from mental health units were included retroactively from 10 July 2020 for the first time in the release on 20 August 2020.
Cafodd data o unedau iechyd meddwl eu cynnwys yn ôl-weithredol o 10 Gorffennaf 2020 am y tro cyntaf yn natganiad 20 Awst 2020.