85% (1966)

86% (1957)

85% (1975)

78% (1988)

66% (1967)

83% (1979)

70% (1963)

66% (1987)

74% (1964)

70% (1962)

71% (1985)

65% (2001)

62% (2003)

80% (1963)

68% (1988)

71% (1963)

67% (1999)

69% (1982)

76% (1960)

73% (1976)