subtract 10%iles      0.00000   0.00127590    0.0307651    0.0671724
     0.111355     0.169218     0.253494     0.396934     0.746665
stardiff 10%iles    -0.251061    -0.108010   -0.0487669   -0.0135370
      0.00000   0.00582508    0.0393810    0.0973701     0.240875
stardiff contour -excluded 0.005    -0.251061     0.240875