43% (1987)

72% (1979)

55% (1990)

57% (1988)

35% (1988)

0% (1985)

0% (1983)

71% (1986)

0% (1995)

20% (1985)

50% (1980)

50% (1987)

60% (1984)

60% (1986)

50% (1984)

52% (1998)

0% (1989)

0% (1984)

60% (1983)

50% (1983)