Persistent absence has at least doubled in most cases between 2018/19 and 2022/23, and slightly reduced for each year group between 2022/23 and 2023/24.
Mae absenoldeb cyson wedi mwy na dyblu yn y rhan fwyaf o achosion rhwng 2018/19 a 2022/23 ac wedi gostwng ychydig ar gyfer pob grŵp blwyddyn rhwng 2022/23 a 2023/24.