While marriage rates had been declining since 2016, the large decrease between 2019 and 2020 is likely due to the pandemic restrictions that were in place for parts of the year.
Roedd yr effaith yn 2019-20 yn gyfyngedig o ganlyniad i amseriad y pandemig, serch hynny cofnodwyd gwariant ychwanegol yn 2019-20 sy’n uwch na blwyddyn nad effeithiwyd arni.