64% (1959)

64% (1993)

65% (1940)

59% (2003)

71% (2008)

69% (1932)

46% (1983)

70% (1953)

62% (1996)

72% (1973)

60% (2000)

63% (1992)

56% (1991)

68% (1933)

53% (1988)

71% (1963)

53% (2006)

61% (1990)

0% (1970)

41% (1981)