59% (2002)

55% (1953)

43% (2002)

64% (1926)

65% (1991)

71% (1986)

67% (1983)

73% (2005)

59% (2002)

48% (1981)

63% (1985)

68% (1937)

51% (1963)

68% (2001)

70% (1939)

58% (2006)

58% (1996)

54% (1999)

61% (1933)

40% (1938)