subtract 10%iles      0.00000      0.00000    0.0320585    0.0740528
     0.126008     0.198642     0.310463     0.495798     0.902427
diff 10%iles    -0.331394    -0.135346   -0.0561450   -0.0128412      0.00000
   0.00997972    0.0519341     0.129570     0.325757
stardiff 10%iles   -0.0469227   -0.0159934  -0.00434397      0.00000
  0.000816934   0.00675304    0.0145053    0.0271066    0.0558179
stardiff contour -excluded 0.005   -0.0469227    0.0558179