april 1990

april 1990: 537 companies

1. april 1990 232 companies

2. april 1990 22 companies

3. april 1990 22 companies

4. april 1990 12 companies

5. april 1990 22 companies

6. april 1990 14 companies

9. april 1990 24 companies

10. april 1990 25 companies

11. april 1990 8 companies

12. april 1990 2 companies

14. april 1990 1 companies

15. april 1990 4 companies

17. april 1990 17 companies

18. april 1990 19 companies

19. april 1990 17 companies

20. april 1990 24 companies

21. april 1990 1 companies

23. april 1990 6 companies

24. april 1990 7 companies

25. april 1990 19 companies

26. april 1990 9 companies

27. april 1990 15 companies

28. april 1990 1 companies

30. april 1990 14 companies