subtract 10%iles -0.000146389   0.00650072    0.0124569    0.0189891
    0.0271463    0.0385885    0.0565252    0.0899153     0.177112
diff 10%iles   -0.0750809   -0.0329502   -0.0172586  -0.00766993  0.000159264
   0.00799942    0.0176444    0.0334177    0.0759063
stardiff 10%iles   -0.0268098   -0.0138041  -0.00737787  -0.00264689
   0.00153462   0.00574126    0.0105629    0.0172539    0.0310613
stardiff contour -excluded 0.005   -0.0268098    0.0310613