April 1990

April 1990: 340 companies

2 April 1990 19 companies

3 April 1990 14 companies

4 April 1990 12 companies

5 April 1990 20 companies

6 April 1990 4 companies

7 April 1990 17 companies

9 April 1990 15 companies

10 April 1990 14 companies

11 April 1990 18 companies

12 April 1990 11 companies

17 April 1990 14 companies

18 April 1990 25 companies

19 April 1990 21 companies

21 April 1990 16 companies

23 April 1990 23 companies

24 April 1990 14 companies

25 April 1990 21 companies

26 April 1990 19 companies

27 April 1990 10 companies

28 April 1990 12 companies

30 April 1990 21 companies