85% (2000)

83% (2009)

81% (2002)

79% (2013)

75% (2007)

71% (2010)

71% (2007)

79% (2011)

78% (2007)

66% (2010)

68% (2000)

68% (2005)

68% (2000)

72% (2013)

72% (2002)

66% (2009)

69% (2011)

68% (1998)

57% (2005)

70% (2014)