april 1991

april 1991: 668 companies

1. april 1991 4 companies

2. april 1991 9 companies

3. april 1991 9 companies

4. april 1991 7 companies

5. april 1991 3 companies

6. april 1991 3 companies

7. april 1991 13 companies

8. april 1991 95 companies

9. april 1991 18 companies

10. april 1991 14 companies

11. april 1991 8 companies

12. april 1991 2 companies

13. april 1991 3 companies

14. april 1991 7 companies

15. april 1991 44 companies

16. april 1991 79 companies

17. april 1991 8 companies

18. april 1991 30 companies

19. april 1991 2 companies

20. april 1991 3 companies

21. april 1991 8 companies

22. april 1991 88 companies

23. april 1991 72 companies

24. april 1991 38 companies

25. april 1991 40 companies

26. april 1991 1 companies

27. april 1991 3 companies

28. april 1991 22 companies

29. april 1991 34 companies

30. april 1991 1 companies