subtract 10%iles  -0.00104046   0.00650692    0.0132880    0.0208459
    0.0304251    0.0440125    0.0657175     0.106833     0.218047
stardiff 10%iles    -0.119247   -0.0491437   -0.0239846  -0.00995494
  0.000664763    0.0112731    0.0252693    0.0503215     0.119903
stardiff contour -excluded 0.005    -0.119247     0.119903