subtract 10%iles  -0.00149918   0.00590038    0.0124168    0.0194473
    0.0278482    0.0390320    0.0556693    0.0850053     0.158946
diff 10%iles   -0.0791321   -0.0364318   -0.0194421  -0.00869846  0.000167847
   0.00899649    0.0196066    0.0362277    0.0780365
stardiff 10%iles   -0.0279612   -0.0148743  -0.00804678  -0.00290286
   0.00167120   0.00623576    0.0113283    0.0180172    0.0304963
stardiff contour -excluded 0.005   -0.0279612    0.0304963