market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 R530 A 8 37011 0323 1/14/97 16:03:07 37011 1 10 R534 A 8 31000 0317 1/14/97 16:07:38 31000 1 12 R540 A 8 40000 0320 1/14/97 16:06:32 40000 1 13 R554 A 8 25000 0300 1/14/97 16:15:55 25000 1 16 R608 B 8 32322 0304 1/14/97 16:08:55 32322 1 18 R718 A 8 42011 0323 1/14/97 16:03:07 42011 1 22