subtract 10%iles -0.000243664   0.00577068    0.0110216    0.0166464
    0.0236001    0.0334740    0.0494957    0.0807972     0.170170
diff 10%iles   -0.0612538   -0.0273907   -0.0146637  -0.00657177  0.000165939
   0.00690842    0.0150208    0.0277858    0.0615597
stardiff 10%iles   -0.0258311   -0.0134068  -0.00724777  -0.00269603
   0.00133245   0.00537669    0.0100032    0.0163897    0.0296789
stardiff contour -excluded 0.005   -0.0258311    0.0296789