This is lower than the peak seen in April to June 2021, but represents an increase of 1% compared with July to September 2019 (estimate taken as at October 2019).
Mae hyn yn is na’r uchafbwynt a welwyd yn Ebrill i Fehefin 2021, ond mae'n cynrychioli cynnydd o 1% o'i gymharu â Gorffennaf i Fedi 2019 (amcangyfrifwyd ym mis Hydref 2019).