subtract 10%iles  -0.00112247   0.00589895    0.0119262    0.0183296
    0.0260155    0.0365753    0.0531101    0.0839357     0.165674
diff 10%iles   -0.0796590   -0.0348053   -0.0181665  -0.00801468  0.000211716
   0.00840378    0.0184379    0.0347810    0.0786729
stardiff 10%iles   -0.0275224   -0.0141439  -0.00745652  -0.00251347
   0.00185134   0.00622008    0.0111873    0.0179640    0.0315388
stardiff contour -excluded 0.005   -0.0275224    0.0315388