subtract 10%iles      0.00000   0.00118542    0.0264893    0.0549655
    0.0887532     0.131953     0.192880     0.301402     0.576073
diff 10%iles    -0.218915   -0.0849302   -0.0357561  -0.00850576      0.00000
   0.00710583    0.0344958    0.0843472     0.219976
stardiff 10%iles   -0.0321113   -0.0106582  -0.00289328      0.00000
  0.000974325   0.00553232    0.0111998    0.0201856    0.0427347
stardiff contour -excluded 0.005   -0.0321113    0.0427347