0% (1984)

47% (1987)

50% (1971)

10% (1995)

10% (1983)

20% (1993)

0% (1973)

49% (1979)

10% (1972)

0% (1971)

0% (1990)

30% (1979)

45% (1972)

84% (1967)

47% (1971)

20% (1981)

57% (1968)

42% (1988)

25% (1980)

25% (1972)