79% (1997)

72% (2014)

76% (2009)

84% (1999)

83% (1977)

69% (1996)

74% (2006)

74% (2002)

77% (2016)

82% (1979)

79% (2014)

81% (2019)

58% (2005)

76% (1987)

70% (2005)

76% (2014)

63% (2014)

77% (2015)

68% (2009)

64% (2006)