market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 R352 A 3 50000 0317 1/13/97 15:04:07 50000 1 7 R352 A 3 20000 0312 1/13/97 15:01:34 20000 1 7 R352 A 3 16000 0320 1/13/97 15:28:46 16000 1 7 R530 A 3 11000 0317 1/13/97 15:04:07 11000 1 10 R534 A 3 15000 0320 1/13/97 15:28:46 15000 1 12 R540 A 3 15000 0320 1/13/97 15:28:46 15000 1 13 R554 A 3 15000 0319 1/13/97 15:10:41 15000 1 16 R608 B 3 12015 0304 1/13/97 15:46:39 12015 1 18 R718 A 3 11000 0317 1/13/97 15:04:07 11000 1 22 R718 A 3 10011 0323 1/13/97 15:08:43 10011 1 22 M269 A 3 11000 0327 1/13/97 15:26:27 11000 2 1