market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 E036 A 233 193000 3014 12/8/97 13:35:06 193000 1 106 E037 A 233 218000 3014 12/8/97 13:35:06 218000 1 109 E079 A 233 264000 3014 12/8/97 13:35:06 264000 1 235