subtract 10%iles  -0.00124359    0.0107012    0.0216289    0.0334759
    0.0474396    0.0655613    0.0919261     0.137866     0.253216
stardiff 10%iles    -0.141127   -0.0640490   -0.0335419   -0.0143659
   0.00125100    0.0169061    0.0362490    0.0671895     0.145424
stardiff contour -excluded 0.005    -0.141127     0.145423