35% (1979)

84% (1984)

38% (1978)

34% (1992)

23% (1986)

50% (1980)

52% (1967)

25% (1992)

33% (1968)

75% (1986)

55% (1976)

56% (1977)

65% (1987)

0% (1970)

70% (1970)

40% (1982)

0% (1983)

30% (1980)

0% (1974)

50% (1980)