september 1980

september 1980: 294 companies

1. september 1980 41 companies

2. september 1980 6 companies

3. september 1980 8 companies

4. september 1980 3 companies

5. september 1980 11 companies

6. september 1980 1 companies

8. september 1980 13 companies

9. september 1980 10 companies

10. september 1980 14 companies

11. september 1980 4 companies

12. september 1980 7 companies

14. september 1980 1 companies

15. september 1980 22 companies

16. september 1980 8 companies

17. september 1980 12 companies

18. september 1980 8 companies

19. september 1980 18 companies

20. september 1980 2 companies

22. september 1980 15 companies

23. september 1980 6 companies

24. september 1980 9 companies

25. september 1980 11 companies

26. september 1980 17 companies

27. september 1980 1 companies

28. september 1980 5 companies

29. september 1980 16 companies

30. september 1980 25 companies