subtract 10%iles -0.000350475   0.00518703   0.00973988    0.0142913
    0.0194740    0.0262613    0.0367041    0.0566611     0.117977
diff 10%iles   -0.0425735   -0.0211964   -0.0119019  -0.00534534  0.000342846
   0.00602579    0.0125699    0.0218840    0.0433977
stardiff 10%iles   -0.0242224   -0.0132867  -0.00740433  -0.00289911
   0.00112523   0.00513312   0.00960238    0.0155111    0.0269533
stardiff contour -excluded 0.005   -0.0242224    0.0269533