subtract 10%iles  0.000349045   0.00643015    0.0115678    0.0167854
    0.0228066    0.0307579    0.0429688    0.0658722     0.129843
diff 10%iles   -0.0543432   -0.0252886   -0.0137920  -0.00615072  0.000339985
   0.00684142    0.0145035    0.0260496    0.0553818
stardiff 10%iles   -0.0249327   -0.0134436  -0.00736579  -0.00274698
   0.00138052   0.00551070    0.0101612    0.0163535    0.0284361
stardiff contour -excluded 0.005   -0.0249327    0.0284361