subtract 10%iles -0.000491142   0.00509501   0.00963354    0.0141454
    0.0192294    0.0257607    0.0355792    0.0537810     0.103918
stardiff 10%iles   -0.0516061   -0.0239259   -0.0130128  -0.00581937
  0.000256404   0.00635515    0.0136615    0.0250323    0.0546974
stardiff contour -excluded 0.005   -0.0516061    0.0546973