Percentage of people in employment, who are on permanent contracts (or on temporary contracts, and not seeking permanent employment) and who earn more than 2/3 of the UK median wage
Canran y bobl sydd mewn gwaith, sydd ar gontractau parhaol (neu ar gontractau dros dro, ac nad ydynt yn ceisio gwaith parhaol) ac sy’n ennill mwy na 2/3 o gyflog canolrifol y DU