55% (1968)

65% (1949)

71% (1937)

68% (1956)

63% (1987)

67% (1934)

54% (2008)

61% (1983)

61% (1984)

55% (1990)

56% (1964)

53% (1986)

62% (2004)

61% (1967)

71% (1949)

64% (1990)

75% (1965)

60% (1964)

59% (1962)

62% (2000)