subtract 10%iles -0.000401497   0.00722623    0.0139275    0.0210314
    0.0294156    0.0404444    0.0569391    0.0867290     0.164625
stardiff 10%iles   -0.0900933   -0.0399770   -0.0208561  -0.00901990
  0.000557346    0.0101104    0.0218865    0.0410250    0.0913572
stardiff contour -excluded 0.005   -0.0900933    0.0913572