In January the number fell slightly, from around 735,000 to around 734,000, a fourth consecutive decrease following consistent increases from April 2020.
Ym mis Ionawr, gostyngodd y nifer ychydig, o tua 735,000 i tua 734,000, sef pedwerydd gostyngiad yn olynol yn dilyn cynnydd cyson ers mis Ebrill 2020.