bid_type	market	freq_block	round_num	bid_amt	bidder_num	date	time
S	M016	N	158	480000	1025	4/12/96	09:06:52
S	M021	Q	158	81081	1092	4/12/96	09:02:29
S	M021	S	158	95095	1092	4/12/96	09:02:29
S	M038	C	158	207000	1057	4/12/96	09:04:18