May 1980

May 1980: 227 companies

1 may 1980 10 companies

4 may 1980 13 companies

5 may 1980 12 companies

6 may 1980 16 companies

7 may 1980 12 companies

8 may 1980 7 companies

9 may 1980 6 companies

11 may 1980 11 companies

12 may 1980 16 companies

13 may 1980 10 companies

14 may 1980 18 companies

15 may 1980 3 companies

17 may 1980 1 companies

18 may 1980 6 companies

19 may 1980 8 companies

20 may 1980 8 companies

22 may 1980 14 companies

23 may 1980 2 companies

25 may 1980 9 companies

26 may 1980 19 companies

27 may 1980 9 companies

28 may 1980 5 companies

29 may 1980 10 companies

30 may 1980 2 companies