This is a slight increase from 163 on 18 May 2021 (2.0% of all hospitalisations) and is currently similar to the lowest levels since reporting began on 1 April 2020.
Mae hyn yn gynnydd bach o 163 ar 18 Mai 2021 (2.0% o'r holl gleifion ysbyty) ac ar hyn o bryd mae’n debyg i’r lefelau isaf ers i’r cofnodi ddechrau ar 1 Ebrill 2020.