67% (2005)

68% (2004)

75% (2004)

67% (2002)

80% (2004)

77% (2002)

58% (2006)

61% (2001)

66% (2005)

53% (2003)

52% (2001)

61% (2006)

57% (2002)

64% (2005)

63% (2001)

54% (2001)

61% (2001)

63% (2004)

66% (2000)

68% (2005)