As a consequence there was an eight fold increase in sessions missed due to study leave from 739 for the week May 17 to May 21 to 6,047 for the week of 21 June to 25 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 6,047 ar gyfer yr wythnos rhwng 21 Mehefin ac 25 Mehefin.