65% (1965)

65% (1964)

68% (1986)

62% (1971)

62% (2003)

69% (1981)

79% (1973)

62% (2003)

76% (1976)

52% (2002)

56% (2004)

64% (2002)

67% (1996)

61% (2013)

73% (1999)

70% (1955)

63% (2002)

66% (1984)

61% (1985)

66% (2017)