subtract 10%iles  9.58443e-05    0.0112562    0.0209746    0.0309715
    0.0423403    0.0567722    0.0775051     0.113108     0.202494
diff 10%iles   -0.0704310   -0.0367126   -0.0208619  -0.00949025  0.000407219
    0.0102944    0.0216484    0.0375023    0.0712662
stardiff 10%iles   -0.0368478   -0.0200117   -0.0108248  -0.00385797
   0.00232195   0.00846310    0.0152948    0.0241886    0.0402562
stardiff contour -excluded 0.005   -0.0368478    0.0402562