78% (2008)

77% (2007)

63% (2013)

71% (2012)

79% (2018)

67% (2009)

78% (2015)

71% (2014)

61% (2009)

77% (2011)

76% (2011)

65% (2017)

75% (2010)

70% (2017)

84% (2005)

72% (2014)

68% (2015)

82% (2013)

72% (2011)

57% (2009)