64% (2010)

79% (2013)

73% (2009)

79% (2006)

63% (2008)

63% (2010)

56% (2007)

74% (2010)

70% (2017)

70% (2009)

72% (2011)

69% (2012)

55% (2008)

71% (2006)

59% (2012)

68% (2008)

58% (2008)

64% (2010)

74% (2009)

66% (2008)