61% (1954)

69% (1960)

63% (1966)

53% (1949)

57% (1955)

66% (2002)

66% (1976)

58% (1980)

64% (1965)

61% (1940)

49% (1949)

68% (1980)

50% (1956)

62% (1926)

70% (1958)

61% (1986)

63% (1969)

66% (1977)

64% (1988)

60% (1995)