april 1977

april 1977: 147 companies

2. april 1977 6 companies

4. april 1977 10 companies

5. april 1977 8 companies

6. april 1977 11 companies

7. april 1977 12 companies

12. april 1977 7 companies

13. april 1977 4 companies

14. april 1977 6 companies

15. april 1977 7 companies

16. april 1977 2 companies

18. april 1977 3 companies

19. april 1977 6 companies

20. april 1977 6 companies

21. april 1977 8 companies

22. april 1977 8 companies

23. april 1977 6 companies

25. april 1977 10 companies

26. april 1977 5 companies

27. april 1977 7 companies

28. april 1977 7 companies

29. april 1977 2 companies

30. april 1977 6 companies