subtract 10%iles -0.000579834   0.00590897    0.0114923    0.0172634
    0.0238791    0.0324492    0.0452938    0.0688896     0.134491
diff 10%iles   -0.0546265   -0.0270784   -0.0150805  -0.00666046  0.000631809
   0.00791550    0.0163355    0.0284147    0.0563040
stardiff 10%iles   -0.0250743   -0.0139788  -0.00760784  -0.00263428
   0.00183350   0.00626864    0.0111581    0.0174314    0.0287997
stardiff contour -excluded 0.005   -0.0250743    0.0287997