If you have any questions, please contact the National Survey team at surveys@gov.wales on our General enquiry Line 0300 025 2021.
Os oes gennych unrhyw gwestiynau, cysylltwch a’r tim Arolwg Cenedlaethol ar arolygon@llyw.cymru neu ar Llinell Ymholiadau Cyffredinol 0300 025 2021.