september 1980

september 1980: 233 companies

1 september 1980 23 companies

2 september 1980 16 companies

3 september 1980 9 companies

4 september 1980 6 companies

5 september 1980 7 companies

7 september 1980 3 companies

8 september 1980 6 companies

9 september 1980 21 companies

10 september 1980 8 companies

14 september 1980 10 companies

15 september 1980 13 companies

16 september 1980 8 companies

17 september 1980 8 companies

18 september 1980 11 companies

19 september 1980 10 companies

21 september 1980 9 companies

22 september 1980 8 companies

23 september 1980 17 companies

24 september 1980 11 companies

26 september 1980 3 companies

28 september 1980 5 companies

29 september 1980 7 companies

30 september 1980 14 companies