However, in December the number fell slightly, from over 748,000 to around 735,000, a third consecutive decrease following consistent increases from April 2020.
Fodd bynnag, ym mis Rhagfyr, gostyngodd y nifer ychydig, o dros 748,000 i tua 735,000, sef trydydd gostyngiad yn olynol yn dilyn cynnydd cyson o fis Ebrill 2020.