72% (1955)

46% (1983)

77% (1979)

76% (1957)

60% (2000)

77% (1958)

69% (2002)

59% (1956)

63% (1960)

68% (1975)

69% (1919)

61% (1986)

70% (2005)

60% (1995)

62% (1966)

62% (1966)

78% (1947)

56% (1984)

65% (1935)

70% (1979)