There were also changes in the gap between Wales and the UK at the different qualification levels between 2020 and 2021 (UK higher than Wales in each case).
Roedd newidiadau hefyd yn y bwlch rhwng Cymru a’r DU o ran y lefelau cymwysterau gwahanol rhwng 2020 a 2021 (y DU yn uwch na Chymru ym mhob achos).