77% (2005)

63% (2006)

68% (2010)

66% (2002)

80% (2011)

66% (2006)

64% (2010)

63% (2005)

74% (2008)

68% (2004)

63% (2008)

58% (2006)

62% (2004)

64% (2009)

64% (2006)

69% (2006)

68% (2004)

73% (2011)

55% (2006)

59% (2004)