[Note 1] The age was not known for 28% of fully qualified GPs that joined the workforce and 17% of fully qualified GPs that left the workforce.
[Nodyn 1] Nid oedd yr oedran yn hysbys ar gyfer 28% o feddygon teulu cwbl gymwysedig a ymunodd â'r gweithlu a 17% o feddygon teulu cwbl gymwysedig a adawodd y gweithlu.