market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 B237 F 79 294000 2636 10/29/96 16:42:00 220500 11 42 B104 E 79 224000 2682 10/29/96 16:44:00 224000 23 11 B491 F 79 888888 2631 10/29/96 16:47:00 666666 25 9