77% (2006)

75% (2004)

68% (2008)

69% (2001)

70% (2003)

73% (2005)

69% (2006)

70% (2002)

53% (2005)

78% (2003)

87% (2005)

83% (2005)

86% (2005)

72% (2003)

49% (2008)

85% (2005)

72% (2005)

88% (2001)

67% (2004)

67% (2005)