64% (2015)

68% (2005)

53% (2015)

68% (1979)

63% (1993)

77% (1952)

56% (1962)

75% (2003)

77% (2003)

61% (1972)

81% (2017)

78% (2010)

69% (2001)

84% (2005)

76% (2009)

78% (2002)

77% (2000)

84% (2008)

79% (2010)

67% (1968)