subtract 10%iles -1.04904e-05   0.00566864    0.0104558    0.0153375
    0.0209694    0.0283394    0.0395832    0.0605335     0.115036
diff 10%iles   -0.0430489   -0.0218325   -0.0123863  -0.00576782 -5.34058e-05
   0.00564528    0.0122089    0.0215130    0.0422039
stardiff 10%iles   -0.0237213   -0.0130968  -0.00738421  -0.00306240
  0.000782562   0.00461558   0.00890651    0.0145877    0.0252357
stardiff contour -excluded 0.005   -0.0237213    0.0252356