English: staying-on rates
Welsh: cyfraddau aros-ymlaen
Subject: Addysg
English definition: the numbers of pupils aged 16, 17 and 18 and over (at the start of the academic year) staying on in school voluntarily after reaching the statutory school leaving age
Welsh definition: nifer y disgyblion 16, 17 ac 18 oed a hyn (ar ddechrau'r flwyddyn academaidd) sy'n aros ymlaen yn yr ysgol yn wirfoddol ar ôl cyrraedd yr oed gadael statudol