This is the first set of these statistics that cover the period of the coronavirus (COVID-19) pandemic (with the exception of March 2020 that fell in the 2019-20 reporting year).
Dyma'r set gyntaf o'r ystadegau hyn sy'n cynnwys â chyfnod y pandemig coronafeirws (COVID-19) (ac eithrio Mawrth 2020 a gwympodd yn adroddiad flwyddyn 2019-20).