82% (1985)

82% (1979)

79% (1972)

80% (1966)

80% (1975)

80% (1975)

76% (1925)

79% (1957)

69% (1967)

78% (1983)

79% (1962)

63% (1965)

78% (1929)

77% (1965)

74% (1975)

74% (1969)

74% (1944)

76% (1968)

72% (1970)

67% (1957)