This timing means that the survey fieldwork was completed at the very onset of the COVID-19 pandemic and the findings are unaffected by the challenges this created.
Mae hynny’n golygu bod gwaith maes yr Arolwg wedi’i gwblhau erbyn dechrau’r pandemig Covid ac nad yw’r heriau a grëwyd gan hynny’n effeithio ar y canfyddiadau.