77% (2003)

84% (2005)

83% (2009)

81% (2017)

77% (2010)

80% (2017)

76% (2000)

65% (2015)

77% (1993)

79% (2014)

76% (2009)

82% (1998)

63% (1993)

80% (2018)

83% (2014)

77% (2012)

83% (2007)

73% (2016)

55% (2015)

81% (2005)