0% (1975)

76% (1975)

64% (1976)

41% (1990)

0% (1976)

50% (1986)

62% (1988)

60% (1977)

35% (1989)

0% (1980)

0% (1979)

43% (1984)

60% (1978)

74% (1972)

40% (1987)

47% (1978)

51% (1978)

48% (1979)

60% (1988)

54% (1974)