market freq_block round_num bid_amt bidder_num date time net_bid_amt sort_col_1 sort_col_2 ME26 B 18 305313 1234 4/22/97 10:30:54 305313 4 10 ME27 B 18 460101 1218 4/22/97 10:36:03 299065 4 12 ME35 B 18 13000 1228 4/22/97 10:53:04 8450 5 10 ME52 B 18 362000 1223 4/22/97 10:41:09 362000 12 2 RE08 D 18 20008 1216 4/22/97 10:36:19 13005 13 16 RE11 C 18 5500 1236 4/22/97 10:38:50 3575 13 21