The most common reason for sessions missed during the week of 18 October to 22 October 2021 was illness (code “I”), with 7.4% of sessions missed for this reason.
Y rheswm mwyaf cyffredin dros sesiynau a gollwyd yn ystod yr wythnos rhwng 18 Hydref i 22 Hydref 2021 oedd salwch (cod “I”), gyda 7.4% o sesiynau wedi’u colli oherwydd y rheswm hwn.