subtract 10%iles  0.000965118   0.00655222    0.0112472    0.0159421
    0.0212593    0.0280581    0.0381727    0.0569267     0.108974
diff 10%iles   -0.0393829   -0.0205307   -0.0117216  -0.00537658  0.000177374
   0.00572109    0.0120354    0.0207777    0.0395107
stardiff 10%iles   -0.0234206   -0.0132703  -0.00752587  -0.00306768
  0.000933336   0.00492134   0.00933851    0.0150555    0.0254072
stardiff contour -excluded 0.005   -0.0234206    0.0254072