82% (1979)

83% (1985)

77% (1925)

80% (1975)

79% (1983)

71% (1966)

79% (1972)

73% (1974)

76% (1966)

72% (1969)

69% (1967)

58% (1967)

71% (1938)

78% (1967)

81% (1966)

79% (1962)

77% (1965)

46% (1987)

80% (1975)

71% (1970)