% achieving two or more ‘A’ level or Advanced Higher passes (or equivalent educational attainment of children and young people aged 17 and 18 years old)
% sy’n cyflawni dau neu ragor o gymwysterau Safon Uwch neu bas ar Lefel Uwch (neu gyrhaeddiad addysgol cyfwerth plant a phobl ifanc rhwng 17 a 18 oed)