10% (1984)

45% (1986)

36% (1970)

34% (1972)

48% (1975)

0% (1976)

32% (1978)

46% (1986)

20% (1971)

38% (1970)

55% (1973)

42% (1991)

100% (1981)

23% (1968)

50% (1976)

45% (1971)

20% (1987)

15% (1969)

42% (1971)

35% (1975)