100% (1976)

82% (1985)

81% (1979)

78% (1972)

76% (1925)

79% (1983)

80% (1975)

74% (1989)

79% (1957)

79% (1962)

72% (1970)

69% (1967)

64% (1929)

72% (1979)

75% (1965)

69% (1928)

80% (1966)

73% (1969)

80% (1973)

76% (1966)