[Mauiusers] values in showstats -u negative

[Lydia Heck]

in the output of showstats -u the stats for one user shows persistently 
negative:

          |------ Active ------|--------------------------------- Completed 
-----------------------------------|
user      Jobs Procs ProcHours Jobs    %    PHReq    %    PHDed    %   FSTgt 
AvgXF  MaxXF  AvgQH  Effic   WCAcc
one-user   1   256 -590639.57   80   0.85 -15411829.5  -5.49 131389.4 
20.79 
-----   0.00   0.00   0.30 9160.05   0.47

Any idea how I should interpret these numbers?

Lydia