subtract 10%iles  -0.00197601   0.00619507    0.0135002    0.0215664
    0.0314646    0.0450182    0.0658002     0.103363     0.200940
diff 10%iles   -0.0952473   -0.0423303   -0.0219498  -0.00961185  0.000318527
    0.0102777    0.0226865    0.0431442    0.0960712
stardiff 10%iles   -0.0295663   -0.0149624  -0.00784966  -0.00263668
   0.00195345   0.00657865    0.0118678    0.0191399    0.0339914
stardiff contour -excluded 0.005   -0.0295663    0.0339914