January 1980

January 1980: 513 companies

January 2, 1980 31 companies

January 3, 1980 9 companies

January 4, 1980 11 companies

January 7, 1980 17 companies

January 8, 1980 22 companies

January 9, 1980 33 companies

January 10, 1980 17 companies

January 11, 1980 22 companies

January 14, 1980 29 companies

January 15, 1980 33 companies

January 16, 1980 32 companies

January 17, 1980 19 companies

January 18, 1980 34 companies

January 21, 1980 21 companies

January 22, 1980 23 companies

January 23, 1980 35 companies

January 24, 1980 13 companies

January 25, 1980 37 companies

January 29, 1980 32 companies

January 30, 1980 25 companies

January 31, 1980 18 companies