subtract 10%iles      0.00000      0.00000    0.0310864    0.0681338
     0.111813     0.171573     0.263529     0.426909     0.819020
diff 10%iles    -0.273899    -0.107975   -0.0451354   -0.0105562      0.00000
   0.00910282    0.0443268     0.108205     0.276435
stardiff 10%iles   -0.0402005   -0.0135223  -0.00402683      0.00000
  0.000702973   0.00627001    0.0133144    0.0245932    0.0524921
stardiff contour -excluded 0.005   -0.0402005    0.0524921