However, due to pandemic disruption, many competitions were suspended; as such any conclusions drawn from the 2020 to 2021 data need to be treated with caution.
Fodd bynnag, oherwydd tarfu’r pandemig, cafodd llawer o gystadlaethau eu gohirio; fel y cyfryw, mae angen bod yn ofalus wrth ddod i unrhyw gasgliadau ar sail data 2020 i 2021.