January 1961

January 1961: 624 companies

January 1, 1961 40 companies

January 2, 1961 20 companies

January 3, 1961 9 companies

January 4, 1961 19 companies

January 5, 1961 17 companies

January 6, 1961 26 companies

January 8, 1961 18 companies

January 9, 1961 18 companies

January 10, 1961 17 companies

January 11, 1961 18 companies

January 12, 1961 25 companies

January 13, 1961 25 companies

January 15, 1961 12 companies

January 16, 1961 9 companies

January 17, 1961 29 companies

January 18, 1961 27 companies

January 19, 1961 29 companies

January 20, 1961 30 companies

January 22, 1961 20 companies

January 23, 1961 16 companies

January 24, 1961 48 companies

January 25, 1961 25 companies

January 26, 1961 26 companies

January 27, 1961 33 companies

January 29, 1961 31 companies

January 30, 1961 24 companies

January 31, 1961 13 companies