52% (1986)

27% (1987)

60% (1980)

51% (1986)

50% (1985)

50% (1988)

40% (1984)

50% (1982)

50% (1986)

23% (1991)

60% (1989)

30% (1991)

0% (1988)

43% (1988)

40% (1982)

14% (1999)

80% (1983)

32% (1988)

0% (2002)

0% (1985)