Figure 10: Percentage of the population (aged 16 years or older) who are able to speak Welsh by highest level of qualification, 2011 and 2021
Ffigur 10: Canran y boblogaeth (16 oed neu'n hŷn) sy'n gallu siarad Cymraeg yn ôl lefel y cymhwyster uchaf, 2011 a 2021