subtract 10%iles -0.000144243   0.00717354    0.0139217    0.0214672
    0.0309982    0.0443430    0.0651855     0.103387     0.202003
diff 10%iles   -0.0872955   -0.0376279   -0.0193627  -0.00851536  0.000148773
   0.00880527    0.0195932    0.0376625    0.0867920
stardiff 10%iles   -0.0287498   -0.0143676  -0.00753422  -0.00259314
   0.00174636   0.00609817    0.0110972    0.0180781    0.0325839
stardiff contour -excluded 0.005   -0.0287498    0.0325839