subtract 10%iles -0.000949860   0.00810719    0.0162807    0.0253468
    0.0367298    0.0525360    0.0771151     0.122997     0.249352
diff 10%iles   -0.0874221   -0.0393572   -0.0207577  -0.00908327  0.000509501
    0.0101414    0.0219665    0.0410004    0.0899820
stardiff 10%iles   -0.0332615   -0.0162548  -0.00851299  -0.00293538
   0.00194814   0.00683517    0.0124363    0.0203293    0.0383901
stardiff contour -excluded 0.005   -0.0332615    0.0383901