78% (2014)

80% (2007)

79% (2016)

74% (2008)

55% (2008)

73% (2013)

65% (2013)

61% (2017)

64% (2016)

72% (2014)

71% (2006)

67% (2004)

70% (2009)

73% (2004)

76% (2012)

62% (2006)

57% (2014)

67% (2014)

74% (2013)

37% (2010)