29% of adults were assessed at Level 1 (37% in 2004) and 59% at Level 2 or above (an increase from 38% in 2004).
Aseswyd bod 29% o oedolion ar Lefel 1 (37% yn 2004) a 59% ar Lefel 2 neu'n uwch (cynnydd o 38% yn 2004).