April 1983

April 1983: 227 companies

2. April 1983 10 companies

4. April 1983 11 companies

5. April 1983 15 companies

6. April 1983 9 companies

7. April 1983 9 companies

8. April 1983 16 companies

9. April 1983 9 companies

11. April 1983 8 companies

12. April 1983 5 companies

13. April 1983 8 companies

14. April 1983 9 companies

15. April 1983 12 companies

16. April 1983 8 companies

18. April 1983 5 companies

19. April 1983 10 companies

20. April 1983 9 companies

21. April 1983 8 companies

22. April 1983 9 companies

23. April 1983 5 companies

25. April 1983 8 companies

26. April 1983 6 companies

27. April 1983 9 companies

28. April 1983 11 companies

29. April 1983 8 companies

30. April 1983 10 companies