85% (2000)

83% (2009)

75% (2007)

81% (2002)

79% (2013)

71% (2010)

79% (2011)

78% (2007)

68% (2000)

72% (2013)

68% (1998)

71% (2002)

71% (2014)

65% (2010)

70% (2007)

72% (2010)

67% (2009)

70% (2005)

68% (2005)

63% (2000)