subtract 10%iles  0.000343561   0.00748730    0.0138111    0.0203571
    0.0278826    0.0374579    0.0510883    0.0739059     0.129341
diff 10%iles   -0.0545321   -0.0274858   -0.0155268  -0.00717163  2.67029e-05
   0.00717831    0.0153852    0.0270538    0.0536404
stardiff 10%iles   -0.0264919   -0.0148247  -0.00830033  -0.00327425
   0.00120573   0.00562953    0.0104903    0.0167062    0.0277692
stardiff contour -excluded 0.005   -0.0264919    0.0277692