27% (1982)

0% (1964)

0% (1982)

0% (1984)

41% (1983)

47% (1982)

50% (1985)

0% (1982)

39% (1983)

32% (1985)

0% (1981)

15% (1983)

44% (1986)

25% (1986)

0% (1982)

10% (1985)

0% (1985)

70% (1986)

70% (1983)

55% (1984)