subtract 10%iles -0.000967979   0.00562930    0.0111043    0.0167465
    0.0233698    0.0323067    0.0463734    0.0734172     0.149272
diff 10%iles   -0.0646646   -0.0291328   -0.0155950  -0.00697327  0.000177383
   0.00732470    0.0159245    0.0294676    0.0652757
stardiff 10%iles   -0.0260483   -0.0137739  -0.00743492  -0.00270556
   0.00147407   0.00564209    0.0103602    0.0167567    0.0295396
stardiff contour -excluded 0.005   -0.0260483    0.0295396