subtract 10%iles -0.000915527   0.00911713    0.0181065    0.0279841
    0.0400200    0.0559616    0.0793877     0.119977     0.219828
diff 10%iles   -0.0883102   -0.0410805   -0.0219736  -0.00977850  0.000287294
    0.0103202    0.0224214    0.0412478    0.0874844
stardiff 10%iles   -0.0326810   -0.0167756  -0.00896544  -0.00321143
   0.00186202   0.00691422    0.0125936    0.0201862    0.0351994
stardiff contour -excluded 0.005   -0.0326810    0.0351994