market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 B026 F 8 22 2636 9/5/96 16:05:00 16 11 12 B152 F 8 22 2636 9/5/96 16:05:00 16 15 12 B401 F 8 1699359 2636 9/5/96 16:05:00 1274519 33 3