83% (1985)

73% (1985)

70% (1987)

68% (1997)

52% (1986)

71% (1983)

47% (1987)

64% (2004)

78% (1997)

47% (1985)

77% (1998)

58% (1984)

66% (1987)

72% (1998)

62% (1992)

73% (1971)

68% (1990)

49% (1984)

65% (1995)

58% (1986)