50% (1982)

50% (1986)

52% (1986)

60% (1980)

51% (1986)

32% (1988)

50% (1985)

0% (2002)

40% (1984)

60% (1989)

27% (1987)

40% (1982)

23% (1991)

50% (1988)

80% (1983)

30% (1991)

13% (1991)

40% (2000)

43% (1988)

14% (1999)