subtract 10%iles -0.000764132    0.0195508    0.0403194    0.0647686
    0.0942430     0.131580     0.182823     0.262616     0.428902
stardiff 10%iles    -0.227759    -0.110889   -0.0571821   -0.0227621
   0.00299218    0.0291440    0.0636759     0.116585     0.230256
stardiff contour -excluded 0.005    -0.227759     0.230256