In Wales, the number of adults aged 65 and over has increased by 50% (225,000) since 1991.
Mae maint y boblogaeth 90 oed neu hŷn yng Nghymru (29,700, 1.0%) wedi cynyddu ers 2011, pan oedd 25,200 (0.8%) yn 90 oed neu’n hŷn.