subtract 10%iles -0.000922203   0.00692558    0.0136333    0.0206003
    0.0286083    0.0388489    0.0537424    0.0799685     0.147218
diff 10%iles   -0.0690594   -0.0333586   -0.0184021  -0.00826073  0.000380516
   0.00897169    0.0190187    0.0338936    0.0696917
stardiff 10%iles   -0.0276693   -0.0153017  -0.00835235  -0.00296485
   0.00183997   0.00656267    0.0117298    0.0183551    0.0304351
stardiff contour -excluded 0.005   -0.0276693    0.0304351