As a consequence there was an almost eight fold increase in sessions missed due to study leave from 739 for the week May 17 to May 21 to 5,771 for the week of 7 June to 11 June.
O ganlyniad, bu cynnydd o bron i wyth gwaith yn y sesiynau a gollwyd oherwydd absenoldeb astudio o 739 ar gyfer yr wythnos Mai 17 i Fai 21 i 5,771 ar gyfer yr wythnos rhwng 7 Mehefin ac 11 Mehefin.