bid_type	market	freq_block	round_num	bid_amt	bidder_num	date	time
S	M016	L	159	425000	1092	4/12/96	10:12:05
S	M021	C	159	85000	1042	4/12/96	10:13:24
S	M038	N	159	195000	1042	4/12/96	10:13:24