85% (1966)

86% (1957)

85% (1975)

83% (1979)

70% (1962)

78% (1988)

68% (1988)

71% (1963)

74% (1964)

62% (2003)

74% (1976)

65% (2001)

80% (1963)

71% (1985)

80% (1980)

66% (1967)

67% (1998)

64% (1971)

66% (1987)

68% (1999)