Between 2013/14 and 2018/19 the range of persistent absence for all year groups was no greater than 2.8%, compared to 4.9% in 2022/23.
Rhwng 2013/14 a 2018/19 nid oedd yr ystod o absenoldeb cyson rhwng grwpiau blwyddyn yn fwy na 2.8%, o'i gymharu â dros 4.9% yn 2022/23.