subtract 10%iles -0.000404596   0.00566483    0.0108538    0.0163217
    0.0229456    0.0322039    0.0472069    0.0762215     0.156908
diff 10%iles   -0.0586052   -0.0265671   -0.0143013  -0.00639987  0.000220776
   0.00685883    0.0148406    0.0273857    0.0608330
stardiff 10%iles   -0.0252496   -0.0132752  -0.00722320  -0.00271324
   0.00129179   0.00532036   0.00992536    0.0162806    0.0295625
stardiff contour -excluded 0.005   -0.0252496    0.0295625