subtract 10%iles -0.000208855   0.00587988    0.0109062    0.0159192
    0.0216169    0.0290756    0.0405102    0.0619946     0.120684
diff 10%iles   -0.0475426   -0.0236387   -0.0132647  -0.00589180  0.000497341
   0.00683403    0.0140505    0.0242834    0.0482845
stardiff 10%iles   -0.0256324   -0.0144706  -0.00805657  -0.00302019
   0.00147930   0.00589332    0.0107039    0.0168569    0.0282779
stardiff contour -excluded 0.005   -0.0256324    0.0282779