This is 1.5 percentage points higher than February 2021 but a decrease of 2.2 percentage points from March 2020 and a decrease of 3.0 percentage points on March 2019.
Mae hyn 1.2 pwynt canran yn uwch nag ym mis Mai 2021 ond 33.3 pwynt canran yn is na mis Mehefin 2019.