The most common reason for sessions missed during the week of 11 October to 15 October 2021 was illness (code “I”), with 6.6% of sessions missed for this reason.
Y rheswm mwyaf cyffredin dros sesiynau a gollwyd yn ystod yr wythnos rhwng 11 Hydref i 15 Hydref 2021 oedd salwch (cod “I”), gyda 6.6% o sesiynau wedi’u colli oherwydd y rheswm hwn.