subtract 10%iles  0.000532627   0.00654316    0.0117486    0.0171499
    0.0235882    0.0323906    0.0461912    0.0718668     0.140598
diff 10%iles   -0.0509844   -0.0244918   -0.0135603  -0.00609875  0.000277519
   0.00662518    0.0139937    0.0247898    0.0511055
stardiff 10%iles   -0.0248919   -0.0137322  -0.00760306  -0.00289622
   0.00130237   0.00547311    0.0101065    0.0161833    0.0276767
stardiff contour -excluded 0.005   -0.0248919    0.0276767