subtract 10%iles -0.000271797   0.00562048    0.0106277    0.0157669
    0.0217433    0.0296698    0.0417976    0.0644932     0.128439
stardiff 10%iles   -0.0621375   -0.0269688   -0.0137980  -0.00542760
   0.00156257   0.00865146    0.0174433    0.0319226    0.0718584
stardiff contour -excluded 0.005   -0.0621375    0.0718584