april 1973

april 1973: 342 companies

2. april 1973 22 companies

3. april 1973 18 companies

4. april 1973 27 companies

5. april 1973 14 companies

6. april 1973 18 companies

9. april 1973 17 companies

10. april 1973 25 companies

11. april 1973 12 companies

12. april 1973 19 companies

13. april 1973 9 companies

16. april 1973 22 companies

17. april 1973 26 companies

18. april 1973 17 companies

19. april 1973 23 companies

24. april 1973 5 companies

26. april 1973 18 companies

27. april 1973 22 companies

30. april 1973 28 companies