77% (2005)

63% (2006)

68% (2010)

66% (2002)

62% (2005)

64% (2010)

75% (2008)

68% (2004)

67% (2006)

64% (2006)

68% (2004)

62% (2008)

74% (2011)

74% (2007)

55% (2006)

80% (2011)

62% (2004)

59% (2004)

58% (2006)

68% (2006)