65% (1981)

68% (1975)

52% (1980)

34% (1979)

64% (1986)

71% (1983)

62% (1984)

100% (1984)

70% (1974)

50% (1976)

45% (1980)

48% (1977)

90% (1973)

0% (1980)

0% (1975)

54% (1985)

80% (1979)

57% (1979)

60% (1984)

0% (1982)