77% (2006)

75% (2004)

69% (2001)

71% (2003)

73% (2005)

71% (2002)

53% (2005)

68% (2008)

69% (2006)

86% (2005)

75% (2003)

85% (2005)

83% (2005)

72% (2003)

67% (2005)

67% (2004)

83% (2005)

83% (2001)

49% (2008)

52% (2005)