bid_type market freq_block round_num bid_amt bidder_num date time S B457 C 167 640093 2271 5/1/96 16:36:48 S B105 C 167 18519000 2167 5/1/96 16:31:09 S B349 C 167 174000 2358 5/1/96 16:31:32 S B053 C 167 1974000 2271 5/1/96 16:36:48 S B222 C 167 9375000 2144 5/1/96 16:37:31