#date    time    tmajor tminor %change histmean   histsd    trmean   trstd  almean   alstd    F1    F2	timestamp tdiff
#F1 = (histmean-trigmean)/sqrt((histsd**2+trigsd**2)/2)
09/14/2004 18:30:34 224     ?       4.9   1000.0     0.0       950.8     0.0    ?       ?        49.20        0.00  1095211834 163
09/14/2004 21:33:22 224     ?       0.0    994.0    16.1       950.8     0.0   950.8     0.0       3.79       0.00 1095222802 164