61% (2010)

58% (2008)

59% (2012)

72% (2011)

46% (2013)

74% (2009)

62% (2013)

77% (2007)

56% (2007)

58% (2011)

56% (2009)

68% (2011)

59% (2010)

65% (2006)

70% (2017)

68% (2008)

73% (2012)

76% (2007)

64% (2010)

56% (2007)