10% (1982)

0% (1980)

60% (1971)

35% (1983)

50% (1985)

0% (1980)

43% (1979)

56% (1971)

47% (1978)

70% (1971)

55% (1980)

0% (1988)

52% (1970)

0% (1971)

42% (1981)

50% (1978)

80% (1971)

0% (1977)

0% (1981)

0% (1987)