The majority of all sessions missed during the week of 15 March to 19 March were due to an absence directed by the school (code “Y”).
Roedd mwyafrif yr holl sesiynau a gollwyd yn ystod yr wythnos rhwng 15 Mawrth i 19 Mawrth naill ai oherwydd absenoldeb a gyfarwyddwyd gan yr ysgol (cod “Y”).