subtract 10%iles -1.43051e-05   0.00777817    0.0139456    0.0199091
    0.0264831    0.0348158    0.0474391    0.0719156     0.144318
diff 10%iles   -0.0452099   -0.0245619   -0.0142117  -0.00652122  0.000297546
   0.00711846    0.0148196    0.0252020    0.0459189
stardiff 10%iles   -0.0328091   -0.0185113   -0.0105871  -0.00446843
   0.00103524   0.00655525    0.0127173    0.0207621    0.0355068
stardiff contour -excluded 0.005   -0.0328091    0.0355068