subtract 10%iles -0.000163078   0.00504422   0.00935745    0.0136480
    0.0184727    0.0246696    0.0340519    0.0518026     0.103802
diff 10%iles   -0.0383389   -0.0199013   -0.0113277  -0.00515938  0.000244141
   0.00565338    0.0118632    0.0205688    0.0395012
stardiff 10%iles   -0.0222644   -0.0125495  -0.00707737  -0.00283878
  0.000970341   0.00478110   0.00904405    0.0146442    0.0250507
stardiff contour -excluded 0.005   -0.0222644    0.0250507