Average life satisfaction for young people has declined from 2017-18 when 85% said they were satisfied with their life, compared to 78% in 2021-22.
Mae boddhad cyfartalog â bywyd pobl ifanc wedi gostwng ers 2017-18 pan ddywedodd 85% eu bod yn fodlon â’u bywyd, o’i gymharu â 78% yn 2021-22