This is the highest quarterly number seen to date, and represents an increase of 32% compared with April to June 2019 (estimate taken as at July 2019).
Dyma'r nifer chwarterol uchaf a welwyd hyd yma, ac mae'n cynrychioli cynnydd o 32% o'i gymharu ag Ebrill i Fehefin 2019 (amcangyfrifwyd ym mis Gorffennaf 2019).