subtract 10%iles -0.000554085   0.00558090    0.0106392    0.0157013
    0.0213814    0.0286474    0.0396209    0.0606203     0.123722
diff 10%iles   -0.0450702   -0.0228415   -0.0128679  -0.00573683  0.000496387
   0.00674963    0.0139384    0.0242109    0.0486984
stardiff 10%iles   -0.0242969   -0.0137083  -0.00765648  -0.00292687
   0.00133188   0.00556945    0.0102681    0.0163792    0.0279875
stardiff contour -excluded 0.005   -0.0242969    0.0279874