market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 B005 D 67 19000 2624 10/22/96 16:19:00 19000 5 43 B486 F 67 45088 2611 10/22/96 16:12:00 33816 27 12 B322 E 67 31088 2611 10/22/96 16:12:00 31088 27 20