The survey covered a representative random sample of people aged 16+ across Wales, including people who are more difficult to reach and people who don’t use the internet.
Roedd yr arolwg edrych ar sampl gynrychioliadol a ddewiswyd ar hap o bobl 16+ oed o bob cwr o Gymru, gan gynnwys pobl anodd cyrraedd atynt a phobl nad ydynt yn defnyddio'r rhyngrwyd.