market	freq_block	bid_round	bid_amt	bidder_num	date	time	net_bid_amt	min_accept	num_of_bids	sort_col_1	sort_col_2
N001		15	49250613	0252	4/1/97	15:17:29	49250613	56638000	0	1	1
N002		16	56700000	0253	4/1/97	15:30:34	56700000	65205000	3	1	2