subtract 10%iles -0.000194073   0.00562811    0.0105457    0.0155125
    0.0211267    0.0282936    0.0390387    0.0597017     0.118820
diff 10%iles   -0.0430040   -0.0213857   -0.0119314  -0.00529432  0.000467300
   0.00626493    0.0129972    0.0227242    0.0454941
stardiff 10%iles   -0.0232427   -0.0126616  -0.00696653  -0.00263368
   0.00123186   0.00510702   0.00948229    0.0153498    0.0267518
stardiff contour -excluded 0.005   -0.0232427    0.0267518