subtract 10%iles  -0.00122833   0.00471735   0.00960159    0.0145278
    0.0200791    0.0273247    0.0386713    0.0614281     0.127401
diff 10%iles   -0.0466087   -0.0229359   -0.0128479  -0.00577044  0.000385284
   0.00656199    0.0137444    0.0241511    0.0491180
stardiff 10%iles   -0.0253395   -0.0138655  -0.00772345  -0.00301911
   0.00120120   0.00541857    0.0101515    0.0164826    0.0290981
stardiff contour -excluded 0.005   -0.0253395    0.0290980