83% (1985)

76% (1968)

71% (1970)

79% (1962)

82% (1979)

76% (1925)

80% (1975)

76% (1965)

79% (1964)

80% (1975)

76% (1971)

79% (1972)

59% (1969)

80% (1977)

71% (1972)

79% (1983)

80% (1966)

63% (1965)

78% (1929)

67% (1957)