Source: Emergency department data set (EDDS), Digital Health and Care Wales (DHCW) (Number of attendances in NHS Wales emergency departments by age band, sex and site on StatsWales)
Mae data ar gael ar StatsCymru (Nifer y derbyniadau mewn adrannau achosion brys yn y GIG yng Nghymru yn ôl band oedran, rhyw a safle).