subtract 10%iles -0.000501156   0.00486064   0.00926685    0.0136566
    0.0185928    0.0249143    0.0342560    0.0509520    0.0953665
diff 10%iles   -0.0404916   -0.0205312   -0.0116405  -0.00539112  2.76566e-05
   0.00544810    0.0117002    0.0205841    0.0404663
stardiff 10%iles   -0.0233491   -0.0128526  -0.00722990  -0.00297022
  0.000820425   0.00460761   0.00885790    0.0145036    0.0252890
stardiff contour -excluded 0.005   -0.0233491    0.0252890