#date    time    tmajor tminor %change histmean   histsd    trmean   trstd  almean   alstd    F1    F2	timestamp tdiff
#F1 = (histmean-trigmean)/sqrt((histsd**2+trigsd**2)/2)
07/07/2004 09:12:37 224     ?       0.8   1000.0     0.0       992.2     7.0    ?       ?         1.59        0.00  1089216757 218