This was a decrease of 30,300 (2.4%) on February 2020, but a slight increase of 3,000 (0.2%) compared with the lowest point in November 2020.
Roedd hyn yn ostyngiad o 30,300 (2.4%) o gymharu â mis Chwefror 2020, ond yn gynnydd bach o 3,000 (0.2%) o gymharu â’r pwynt isaf ym mis Tachwedd 2020.