market	freq_block	round_num	bid_amt	bidder_num	date	time	net_bid_amt	sort_col_1	sort_col_2
N002		8	21000000	0251	4/1/97	12:06:36	21000000	1	2
N002		8	20172736	0250	4/1/97	12:06:13	20172736	1	2
N002		8	19250000	0253	4/1/97	12:06:24	19250000	1	2