april 1990

april 1990: 986 companies

2. april 1990 47 companies

3. april 1990 73 companies

4. april 1990 52 companies

5. april 1990 46 companies

6. april 1990 20 companies

9. april 1990 78 companies

10. april 1990 46 companies

11. april 1990 95 companies

12. april 1990 27 companies

17. april 1990 41 companies

18. april 1990 82 companies

19. april 1990 54 companies

20. april 1990 56 companies

21. april 1990 16 companies

23. april 1990 30 companies

24. april 1990 52 companies

26. april 1990 47 companies

27. april 1990 42 companies

28. april 1990 21 companies

30. april 1990 61 companies