72% (2000)

71% (1994)

63% (1995)

53% (1998)

70% (1999)

78% (1994)

77% (1997)

71% (1995)

64% (1994)

67% (1998)

77% (2003)

68% (1995)

72% (1998)

68% (1994)

10% (1997)

66% (1996)

65% (1997)

64% (1998)

68% (1995)

40% (1997)