New data is based on the year 1 April 2023 to 31 March 2024, or the position on 31 March 2024.
Mae'n berthnasol i ddata o 1 Ebrill 2023 i 31 Mawrth 2024, a gasglwyd ym mlwyddyn ariannol 1 Ebrill 2024 hyd 31 Mawrth 2025.