subtract 10%iles -0.000753403   0.00749850    0.0147552    0.0225277
    0.0319016    0.0446815    0.0646305     0.102317     0.204072
diff 10%iles   -0.0743484   -0.0348473   -0.0187957  -0.00816488  0.000801086
   0.00971365    0.0202336    0.0361471    0.0749588
stardiff 10%iles   -0.0296744   -0.0157158  -0.00833752  -0.00271152
   0.00226756   0.00715366    0.0125518    0.0196679    0.0336638
stardiff contour -excluded 0.005   -0.0296744    0.0336638