market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 E084 B 208 23000 3060 12/4/97 17:00:27 23000 1 251 E088 C 208 31000 3060 12/4/97 17:00:27 31000 1 264 E089 C 208 35000 3060 12/4/97 17:00:27 35000 1 267