subtract 10%iles -0.000605583   0.00494003   0.00946975    0.0139506
    0.0189314    0.0251822    0.0342541    0.0506668    0.0967026
stardiff 10%iles   -0.0485264   -0.0227351   -0.0123936  -0.00547564
  0.000407303   0.00628408    0.0132182    0.0236711    0.0501410
stardiff contour -excluded 0.005   -0.0485264    0.0501410