69% (1967)

70% (1938)

68% (1938)

73% (1969)

71% (1970)

55% (1953)

78% (1967)

79% (1962)

72% (1964)

76% (1980)

50% (1944)

32% (1980)

61% (1936)

79% (1971)

76% (1967)

78% (1969)

79% (1977)

80% (1959)

76% (1966)

60% (1946)