market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 E084 B 209 28000 3014 12/5/97 09:00:52 28000 1 251 E088 C 209 37000 3014 12/5/97 09:00:52 37000 1 264 E089 C 209 42000 3014 12/5/97 09:00:52 42000 1 267