subtract 10%iles -0.000528812   0.00817800    0.0158207    0.0238256
    0.0330868    0.0449667    0.0622349    0.0924850     0.166858
diff 10%iles   -0.0730329   -0.0351257   -0.0192013  -0.00853729  0.000438690
   0.00934410    0.0197711    0.0352969    0.0724936
stardiff 10%iles   -0.0292354   -0.0158131  -0.00850245  -0.00294170
   0.00198584   0.00684099    0.0121904    0.0191041    0.0317809
stardiff contour -excluded 0.005   -0.0292354    0.0317808