However, in 2021/22, almost 22% of year 11 pupils were persistently absent compared to between 5% and 6% before the pandemic.
Roedd y cynnydd mwyaf yn absenoldeb yn ystod y pandemig ymysg disgyblion ym mlwyddyn 11, o 6.5% cyn y pandemig i 15.8% yn 2021/22.