The most common reason for sessions missed on the 6 January and 7 January 2022 was absence due to COVID-19 (code “]”), with 11% of sessions missed for this reason.
Y rheswm mwyaf cyffredin dros sesiynau a gollwyd ar yr 6 Ionawr a 7 Ionawr 2022 oedd absenoldeb oherwydd COVID-19 gyda 11% o sesiynau wedi’u colli oherwydd y rheswm hwn.