75% (2004)

70% (2003)

76% (2006)

70% (2002)

72% (2005)

69% (2001)

68% (2006)

52% (2005)

68% (2008)

83% (2005)

74% (2003)

86% (2005)

68% (2004)

84% (2005)

52% (2005)

75% (2003)

82% (2005)

87% (2005)

74% (2005)

71% (2004)