10% (1972)

0% (1994)

0% (1970)

30% (1979)

43% (1973)

60% (1985)

47% (1987)

52% (1984)

59% (1982)

10% (1969)

25% (1972)

49% (1979)

49% (1972)

50% (1971)

20% (1971)

0% (1989)

30% (1986)

20% (1971)

53% (1973)

20% (1979)