In 2015 and 2016, 69 per cent of the employed workers is organised in trade unions. Union density in 2016 was 62% among blue-collar-workers (most of them in the Swedish Trade Union Confederation, LO) and 75% among white-collar workers (most of them in the Swedish Confederation of Professional Employees, TCO, and the Swedish Confederation of Professional Associations, SACO). Sweden has state-supported union unemployment funds (Ghent system). Trade unions have the right to elect two representatives to the board in all Swedish companies with more than 25 employees. Sweden has a relatively high amount of sick leave per worker in OECD: the average worker loses 24 days due to sickness.