market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 B079 F 75 83000 2749 10/28/96 13:44:00 83000 4 30 B008 E 75 1821000 2714 10/28/96 13:36:00 1821000 39 2 B253 E 75 16000 2672 10/28/96 13:36:00 16000 46 17