subtract 10%iles -0.000142574   0.00505471   0.00930548    0.0135040
    0.0181775    0.0241184    0.0329523    0.0490694    0.0921288
diff 10%iles   -0.0385742   -0.0199780   -0.0113912  -0.00524306  0.000130653
   0.00551558    0.0117035    0.0203981    0.0393453
stardiff 10%iles   -0.0222575   -0.0125473  -0.00710841  -0.00291272
  0.000858389   0.00463208   0.00885422    0.0143959    0.0246709
stardiff contour -excluded 0.005   -0.0222575    0.0246709