60% (1994)

72% (1975)

61% (1998)

66% (1943)

74% (1951)

77% (1949)

62% (1963)

75% (1980)

60% (1997)

62% (2014)

71% (1965)

63% (1964)

67% (1998)

57% (1994)

62% (2005)

73% (1931)

64% (1962)

58% (2003)

64% (1998)

57% (2010)