Description of Figure 10: Bar chart showing the percentage of the population who were able to speak Welsh in 2011 and 2021 by their highest qualification level.
Disgrifiad o Ffigur 10: Siart bar sy'n dangos canran y boblogaeth oedd yn gallu siarad Cymraeg yn 2011 a 2021 yn ôl lefel eu cymhwyster uchaf.