subtract 10%iles  4.31538e-05   0.00610065    0.0114064    0.0170465
    0.0239277    0.0334835    0.0484028    0.0759587     0.149604
diff 10%iles   -0.0609646   -0.0276146   -0.0148506  -0.00670576  7.62939e-05
   0.00685596    0.0150003    0.0277138    0.0611181
stardiff 10%iles   -0.0253046   -0.0133479  -0.00727169  -0.00275523
   0.00124358   0.00524948   0.00979588    0.0159879    0.0283880
stardiff contour -excluded 0.005   -0.0253046    0.0283880