55% (1986)

60% (1987)

52% (1987)

41% (1986)

43% (1987)

40% (1982)

0% (1988)

45% (1988)

47% (1986)

53% (1987)

47% (1987)

65% (1986)

50% (1987)

50% (1987)

100% (1989)

40% (1988)

60% (1982)

0% (1988)

55% (1987)

37% (1987)