market	freq_block	round_num	bid_amt	bidder_num	date	time	net_bid_amt	sort_col_1	sort_col_2
B458	E	275	608000	2697	1/13/97	18:56:37	608000	4	20
B468	F	275	56000	2767	1/13/97	18:59:30	42000	24	15