subtract 10%iles  -0.00122547   0.00608253    0.0123062    0.0189428
    0.0269680    0.0378652    0.0546112    0.0853405     0.165627
stardiff 10%iles   -0.0912751   -0.0385829   -0.0191461  -0.00763135
   0.00153907    0.0108240    0.0228301    0.0436087    0.0999978
stardiff contour -excluded 0.005   -0.0912751    0.0999978