market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 B164 E 30 12000 2682 9/25/96 10:57:00 12000 1 47 B364 D 30 551011 2767 9/25/96 10:46:00 551011 8 4 B025 D 30 67011 2767 9/25/96 10:46:00 67011 9 16