The majority of all sessions missed during the week of 18 to 22 January were due to an absence directed by the school (code “Y”).
Roedd mwyafrif yr holl sesiynau a gollwyd yn ystod yr wythnos rhwng 18 a 22 Ionawr naill ai oherwydd absenoldeb a gyfarwyddwyd gan yr ysgol (cod “Y”).