The methodology used to produce the Higher Education Statistics Agency (HESA) data has been updated from the 2022/23 academic year, impacting NEET estimates from 2022 onwards.
Diweddarwyd y fethodoleg a ddefnyddir i gynhyrchu data'r Asiantaeth Ystadegau Addysg Uwch (HESA) ym mlwyddyn academaidd 2022/23, gan effeithio ar amcangyfrifon NEET o 2022 ymlaen.