66% (1988)

59% (1988)

52% (1986)

56% (1984)

50% (1988)

65% (1986)

55% (1989)

70% (1987)

60% (1984)

69% (1983)

62% (1989)

0% (1989)

66% (1992)

0% (1992)

68% (1990)

70% (1993)

33% (1987)

67% (1995)

73% (1991)

60% (1988)