subtract 10%iles  -0.00208926   0.00360489   0.00823593    0.0129585
    0.0182412    0.0248289    0.0343885    0.0521202     0.105035
diff 10%iles   -0.0450048   -0.0228066   -0.0131454  -0.00639534 -0.000562191
   0.00525284    0.0119667    0.0215454    0.0432861
stardiff 10%iles   -0.0247614   -0.0138109  -0.00796507  -0.00354975
  0.000346869   0.00420912   0.00851341    0.0141973    0.0249908
stardiff contour -excluded 0.005   -0.0247614    0.0249908