21% of museums completing the survey reported that they had been asked to supply data as part of the Wellbeing of Future Generations Act reporting.
Adroddodd un ar hugain y cant o amgueddfeydd a lenwodd yr arolwg eu bod wedi cael gwahoddiad i gyflenwi data fel rhan o adrodd ar Ddeddf Llesiant Cenedlaethau'r Dyfodol.