This set of results cover the period from April 2023 to March 2024, meaning that some responses were collected through face-to-face interviews and others over the phone.
Mae'r canlyniadau hyn yn cwmpasu'r cyfnod rhwng mis Ebrill 2023 a Mawrth 2024, felly casglwyd rhai o’r ymatebion drwy gyfweliadau wyneb-yn-wyneb ac eraill dros y ffôn.