69% (2008)

72% (2010)

62% (2008)

70% (2008)

62% (2009)

66% (2008)

61% (2005)

64% (2008)

69% (2008)

68% (2008)

63% (2010)

63% (2009)

63% (2008)

57% (2009)

67% (2010)

59% (2007)

70% (2012)

74% (2006)

64% (2009)

56% (2009)