January 1981

January 1981: 1 726 companies

January 1, 1981 822 companies

January 2, 1981 4 companies

January 3, 1981 12 companies

January 4, 1981 4 companies

January 5, 1981 42 companies

January 6, 1981 55 companies

January 7, 1981 25 companies

January 8, 1981 37 companies

January 9, 1981 26 companies

January 10, 1981 54 companies

January 11, 1981 14 companies

January 12, 1981 40 companies

January 13, 1981 42 companies

January 14, 1981 32 companies

January 15, 1981 71 companies

January 16, 1981 35 companies

January 17, 1981 16 companies

January 18, 1981 4 companies

January 19, 1981 49 companies

January 20, 1981 51 companies

January 21, 1981 38 companies

January 22, 1981 28 companies

January 23, 1981 26 companies

January 24, 1981 18 companies

January 25, 1981 20 companies

January 26, 1981 30 companies

January 27, 1981 32 companies

January 28, 1981 27 companies

January 29, 1981 33 companies

January 30, 1981 24 companies

January 31, 1981 15 companies