This compares to 14.6% for people aged 25 to 49 (up 0.5 percentage points) and 28.7% for people aged 50 to 64 (up 0.5 percentage points).
Mae hyn yn cymharu ag 14.6% ymhlith pobl 25 i 49 oed (i fyny 0.5 pwynt canran) a 28.7% ymhlith pobl 50 i 64 oed (i fyny 0.5 pwynt canran).