To help with analysis of the impacts of the coronavirus pandemic on the UK population, the ONS has published a provisional set of population estimates for mid-2019.
Er mwyn helpu dadansoddi effeithiau'r pandemig coronafeirws ar boblogaeth y Deyrnas Unedig, mae'r ONS wedi cyhoeddi set dros dro o amcangyfrifon poblogaeth ar gyfer canol-2019.