subtract 10%iles  -0.00142765   0.00637817    0.0134525    0.0213747
    0.0312743    0.0448968    0.0656967     0.102663     0.195054
diff 10%iles   -0.0989175   -0.0428801   -0.0218220  -0.00946403  0.000293732
    0.0100546    0.0224094    0.0433774    0.0993595
stardiff 10%iles   -0.0288931   -0.0144096  -0.00743713  -0.00236932
   0.00209059   0.00657494    0.0117290    0.0189188    0.0336461
stardiff contour -excluded 0.005   -0.0288931    0.0336461