67% (1932)

69% (1935)

43% (1999)

70% (1937)

57% (1946)

53% (1967)

68% (1975)

69% (2008)

64% (1953)

65% (1954)

61% (1930)

62% (1999)

71% (1964)

69% (2006)

60% (2005)

74% (1924)

69% (1953)

70% (1962)

51% (1971)

56% (1991)