subtract 10%iles  -0.00112343   0.00462151   0.00942230    0.0143139
    0.0198965    0.0271873    0.0385275    0.0614867     0.131306
diff 10%iles   -0.0453453   -0.0225811   -0.0126758  -0.00568008  0.000422001
   0.00654697    0.0136175    0.0236745    0.0463796
stardiff 10%iles   -0.0241250   -0.0133310  -0.00741659  -0.00285035
   0.00126035   0.00538239   0.00999511    0.0160680    0.0274540
stardiff contour -excluded 0.005   -0.0241250    0.0274539