The Welsh Government has funded a boost in the sample size for Wales since 19 to 21 March 2020, and the sample size after boosting is in the region of 500-600.
Mae Llywodraeth Cymru wedi talu am gynnydd ym maint y sampl ar gyfer Cymru ers 19 i 21 Mawrth 2020, a maint y sampl yn sgîl hyn yw oddeutu 500 i 600.