[Note 1] The sex was not known for less than 1% of wider practice staff that joined the workforce and 1% of wider practice staff that left the workforce.
[Nodyn 1] Nid oedd y rhyw’n hysbys ar gyfer llai nag 1% o staff eraill practisau a ymunodd â'r gweithlu ac 1% o staff eraill practisau a adawodd y gweithlu.