64% (2009)

80% (2013)

61% (2010)

79% (2013)

77% (2012)

69% (2008)

64% (2011)

58% (2009)

73% (2010)

73% (2011)

72% (2009)

78% (2010)

74% (2014)

67% (2011)

72% (2010)

71% (2010)

71% (2015)

55% (2007)

61% (2012)

61% (2010)