september 1981

september 1981: 145 companies

1 september 1981 9 companies

2 september 1981 3 companies

3 september 1981 2 companies

4 september 1981 4 companies

5 september 1981 1 companies

7 september 1981 4 companies

8 september 1981 10 companies

9 september 1981 3 companies

10 september 1981 7 companies

11 september 1981 4 companies

12 september 1981 3 companies

14 september 1981 12 companies

15 september 1981 8 companies

16 september 1981 4 companies

17 september 1981 6 companies

18 september 1981 5 companies

19 september 1981 5 companies

21 september 1981 5 companies

22 september 1981 7 companies

23 september 1981 6 companies

24 september 1981 7 companies

25 september 1981 8 companies

26 september 1981 3 companies

28 september 1981 7 companies

29 september 1981 6 companies

30 september 1981 6 companies