65% (2009)

66% (2008)

59% (2010)

67% (2008)

66% (2008)

76% (2008)

59% (2009)

62% (2011)

57% (2011)

72% (2007)

59% (2006)

61% (2010)

55% (2011)

67% (2008)

62% (2013)

58% (2011)

69% (2013)

71% (2006)

61% (2011)

63% (2014)