April 1968

April 1968: 173 companies

1 April 1968 8 companies

2 April 1968 11 companies

3 April 1968 14 companies

4 April 1968 13 companies

5 April 1968 6 companies

8 April 1968 9 companies

9 April 1968 12 companies

10 April 1968 3 companies

11 April 1968 11 companies

16 April 1968 4 companies

17 April 1968 8 companies

18 April 1968 7 companies

19 April 1968 7 companies

22 April 1968 6 companies

23 April 1968 8 companies

24 April 1968 9 companies

26 April 1968 13 companies

29 April 1968 8 companies

30 April 1968 16 companies