market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 E084 B 211 41000 3014 12/5/97 10:04:29 41000 1 251 E088 C 211 53000 3014 12/5/97 10:04:29 53000 1 264 E089 C 211 60000 3014 12/5/97 10:04:29 60000 1 267