However, the percentage of 5 to 15 year olds reported as being able to speak Welsh decreased between 2011 and 2021, from 40.3% in 2011 to 34.3% in 2021, a 6.0 percentage point decrease.
Fodd bynnag, gostyngodd canran y boblogaeth 5 i 15 oed y nodwyd eu bod yn siarad Cymraeg rhwng 2011 a 2021, o 40.3% yn 2011 i 34.3% yn 2021, gostyngiad o 6.0 pwynt canran.