Figure 1: Percentage of half-day sessions absent from school of secondary school-age pupils, 2013/14 to 2022/23 [Note 1] (revised)
Ffigur 1: Canran y sesiynau hanner diwrnod yn absennol o'r ysgol gan ddisgyblion oed ysgol uwchradd, 2013/14 i 2022/23 [Nodyn 1] (diwygiedig)