subtract 10%iles -0.000566483   0.00759029    0.0146985    0.0221658
    0.0309262    0.0425758    0.0605779    0.0945969     0.181345
diff 10%iles   -0.0714321   -0.0343018   -0.0188956  -0.00839090  0.000568390
   0.00944567    0.0197601    0.0349474    0.0717223
stardiff 10%iles   -0.0296429   -0.0162914  -0.00884608  -0.00303753
   0.00212909   0.00717015    0.0126311    0.0195907    0.0324827
stardiff contour -excluded 0.005   -0.0296429    0.0324827