subtract 10%iles    0.0418792     0.111419     0.188779     0.277783
     0.385534     0.522047     0.714329      1.05814      1.72924
stardiff 10%iles    -0.353986    -0.176658   -0.0944442   -0.0411709
   0.00175905    0.0488639     0.113185     0.213895     0.427598
stardiff contour -excluded 0.005    -0.353986     0.427598