61% (1960)

66% (1943)

54% (1999)

72% (1964)

68% (1966)

63% (1951)

59% (1961)

62% (1971)

67% (1999)

68% (1974)

71% (1959)

38% (1942)

69% (2000)

50% (1931)

56% (1970)

64% (1958)

70% (1928)

60% (1990)

72% (1955)

73% (1933)