52% (1984)

0% (1994)

10% (1971)

40% (1995)

0% (1983)

55% (1993)

20% (1971)

10% (1992)

34% (1979)

0% (1975)

53% (1973)

50% (1986)

10% (1972)

0% (1971)

45% (1971)

20% (1967)

0% (1994)

47% (1971)

20% (1984)

100% (1968)