subtract 10%iles -0.000484228   0.00563002    0.0106735    0.0157299
    0.0214574    0.0289459    0.0405970    0.0633869     0.131413
stardiff 10%iles   -0.0501593   -0.0240312   -0.0132835  -0.00584054
  0.000525691   0.00679694    0.0139597    0.0243422    0.0499901
stardiff contour -excluded 0.005   -0.0501593    0.0499901