This was a decrease of 26,100 (2.1%) on February 2020, but a slight increase of 8,500 (0.7%) compared with the lowest point in November 2020.
Roedd hyn yn ostyngiad o 26,100 (2.1%) o gymharu â mis Chwefror 2020, ond yn gynnydd bach o 8,500 (0.7%) o gymharu â’r pwynt isaf ym mis Tachwedd 2020.