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