subtract 10%iles -0.000183105   0.00727987    0.0140839    0.0215173
    0.0306444    0.0431671    0.0625210    0.0978088     0.186234
diff 10%iles   -0.0823669   -0.0373783   -0.0197062  -0.00865555  0.000416517
   0.00948811    0.0205617    0.0382352    0.0832634
stardiff 10%iles   -0.0279753   -0.0145014  -0.00762294  -0.00248904
   0.00206698   0.00663565    0.0118073    0.0187962    0.0325488
stardiff contour -excluded 0.005   -0.0279753    0.0325488