subtract 10%iles      0.00000      0.00000    0.0286362    0.0652840
     0.110376     0.170637     0.258854     0.405415     0.737524
diff 10%iles    -0.269737    -0.111283   -0.0475758   -0.0107386      0.00000
   0.00975704    0.0455194     0.107701     0.266261
stardiff 10%iles   -0.0407436   -0.0140319  -0.00369710      0.00000
   0.00108408   0.00666160    0.0135704    0.0243656    0.0492841
stardiff contour -excluded 0.005   -0.0407436    0.0492840