subtract 10%iles   0.00197124    0.0185924    0.0312538    0.0434361
    0.0571256    0.0748973     0.101547     0.145957     0.251674
stardiff 10%iles   -0.0885607   -0.0440304   -0.0243141   -0.0111542
 -0.000236411    0.0106336    0.0239171    0.0455562    0.0969108
stardiff contour -excluded 0.005   -0.0885607    0.0969107