subtract 10%iles -0.000484467   0.00555611    0.0106745    0.0159998
    0.0223141    0.0309429    0.0447140    0.0709958     0.139084
diff 10%iles   -0.0569019   -0.0261688   -0.0142097  -0.00639534  0.000189781
   0.00677538    0.0145893    0.0265293    0.0570164
stardiff 10%iles   -0.0258949   -0.0137301  -0.00752247  -0.00288432
   0.00123050   0.00535005    0.0100137    0.0163314    0.0289465
stardiff contour -excluded 0.005   -0.0258949    0.0289464