50% (1988)

50% (1982)

14% (1991)

60% (1989)

55% (1986)

40% (1984)

60% (1980)

0% (1985)

23% (1991)

40% (2000)

51% (1986)

50% (1986)

44% (1988)

74% (1983)

50% (1985)

33% (1988)

14% (1999)

27% (1987)

40% (1982)

40% (1986)