april 1990

april 1990: 544 companies

1 april 1990 30 companies

2 april 1990 22 companies

3 april 1990 33 companies

4 april 1990 31 companies

5 april 1990 38 companies

6 april 1990 16 companies

8 april 1990 47 companies

17 april 1990 22 companies

18 april 1990 34 companies

19 april 1990 35 companies

20 april 1990 7 companies

22 april 1990 37 companies

23 april 1990 33 companies

24 april 1990 38 companies

25 april 1990 52 companies

26 april 1990 38 companies

27 april 1990 7 companies

29 april 1990 24 companies