71% (1987)

73% (1985)

83% (1985)

74% (1990)

67% (1997)

66% (1987)

65% (1989)

64% (2004)

72% (1998)

50% (1987)

59% (1984)

67% (1985)

77% (1998)

58% (1986)

80% (1997)

47% (1985)

58% (1999)

63% (1999)

68% (1989)

42% (1986)