67% (2005)

68% (2004)

75% (2004)

67% (2002)

77% (2002)

61% (2001)

80% (2004)

53% (2003)

58% (2006)

52% (2001)

45% (2004)

66% (2005)

57% (2002)

61% (2006)

70% (2005)

43% (2006)

54% (2001)

63% (2004)

52% (2000)

68% (2005)