subtract 10%iles  0.000399113   0.00590277    0.0104914    0.0150814
    0.0203028    0.0270813    0.0372009    0.0553205     0.104856
diff 10%iles   -0.0392690   -0.0204411   -0.0116353  -0.00527239  0.000307083
   0.00588322    0.0122404    0.0210681    0.0401525
stardiff 10%iles   -0.0233003   -0.0131739  -0.00742045  -0.00295194
   0.00106066   0.00505895   0.00948717    0.0152427    0.0257836
stardiff contour -excluded 0.005   -0.0233003    0.0257836