This was 2.8 percentage points lower than the previous month, 3.6 percentage points lower than January 2022 and the lowest on record.
Roedd hyn 3.5 pwynt canran yn is nag ym mis Chwefror, 3.6 pwynt canran yn is nag ym mis Mawrth 2022 a’r isaf ond un ers dechrau cadw cofnodion.