subtract 10%iles  0.000309944    0.0101013    0.0190411    0.0289974
    0.0414133    0.0583229    0.0837457     0.129065     0.248534
diff 10%iles   -0.0889907   -0.0408044   -0.0218487  -0.00986862 -6.81877e-05
   0.00967789    0.0214849    0.0401554    0.0873966
stardiff 10%iles   -0.0339668   -0.0170471  -0.00912057  -0.00342293
   0.00153480   0.00645157    0.0119965    0.0195735    0.0355159
stardiff contour -excluded 0.005   -0.0339668    0.0355159