74% (2010)

66% (2012)

71% (2014)

76% (2010)

71% (2015)

74% (2012)

64% (2010)

72% (2011)

74% (2006)

71% (2007)

67% (2007)

73% (2010)

71% (2011)

64% (2011)

72% (2013)

70% (2010)

76% (2013)

59% (2009)

70% (2009)

73% (2012)