subtract 10%iles  0.000144958   0.00666857    0.0125282    0.0188959
    0.0267639    0.0376654    0.0546837    0.0859685     0.166272
diff 10%iles   -0.0727034   -0.0320797   -0.0168872  -0.00752926  0.000122547
   0.00777340    0.0171137    0.0322323    0.0726937
stardiff 10%iles   -0.0265434   -0.0137117  -0.00733861  -0.00262992
   0.00152571   0.00569551    0.0104578    0.0169972    0.0302369
stardiff contour -excluded 0.005   -0.0265434    0.0302369