April 1977

April 1977: 147 companies

2 April 1977 6 companies

4 April 1977 10 companies

5 April 1977 8 companies

6 April 1977 11 companies

7 April 1977 12 companies

12 April 1977 7 companies

13 April 1977 4 companies

14 April 1977 6 companies

15 April 1977 7 companies

16 April 1977 2 companies

18 April 1977 3 companies

19 April 1977 6 companies

20 April 1977 6 companies

21 April 1977 8 companies

22 April 1977 8 companies

23 April 1977 6 companies

25 April 1977 10 companies

26 April 1977 5 companies

27 April 1977 7 companies

28 April 1977 7 companies

29 April 1977 2 companies

30 April 1977 6 companies