West Wales and the Valleys has seen an increase of 58.0% in GDHI per head since 1999, while East Wales has seen a 59.7% increase, both below the increase for the UK (up 67.4%).
Mae Gorllewin Cymru a'r Cymoedd wedi gweld cynnydd o 58.0% yn GDHI y pen ers 1999, tra bod Dwyrain Cymru wedi gweld 59.7% o gynnydd, y ddau o dan yr cynnydd ar gyfer y DU (cynnydd o 67.4%).