66% (2017)

54% (1988)

63% (1984)

52% (1981)

50% (1989)

65% (2010)

63% (2001)

38% (1987)

41% (1989)

55% (1989)

60% (1996)

59% (2006)

50% (1976)

57% (1986)

56% (1991)

63% (1996)

56% (1980)

56% (1986)

35% (1984)

63% (1986)