subtract 10%iles -0.000927448   0.00534058    0.0105257    0.0157628
    0.0217323    0.0296593    0.0422468    0.0666957     0.133492
diff 10%iles   -0.0532446   -0.0249901   -0.0136981  -0.00610662  0.000366211
   0.00683689    0.0144062    0.0256681    0.0535507
stardiff 10%iles   -0.0249822   -0.0135561  -0.00744284  -0.00277680
   0.00139425   0.00556449    0.0102254    0.0163960    0.0281699
stardiff contour -excluded 0.005   -0.0249822    0.0281699