59% (2012)

63% (2008)

67% (2011)

58% (2011)

74% (2009)

67% (2013)

64% (2013)

57% (2008)

62% (2011)

69% (2013)

66% (2008)

67% (2009)

67% (2008)

61% (2011)

69% (2009)

61% (2011)

66% (2011)

63% (2012)

59% (2010)

67% (2008)