subtract 10%iles -0.000835657   0.00589371    0.0116329    0.0175474
    0.0243001    0.0329552    0.0457401    0.0690639     0.132475
diff 10%iles   -0.0588784   -0.0286808   -0.0159144  -0.00712752  0.000408173
   0.00793648    0.0166931    0.0294814    0.0599246
stardiff 10%iles   -0.0259726   -0.0142855  -0.00784034  -0.00288199
   0.00154861   0.00595498    0.0108418    0.0172021    0.0290110
stardiff contour -excluded 0.005   -0.0259726    0.0290110