xper,xns,xew,xco
0.100000001 , 20.9105835 , 14.6568480 , 892.650024
0.200000003 , 30.2194443 , 22.5174923 , 1031.25000
0.300000012 , 38.4805756 , 20.1823044 , 1031.25000
0.500000000 , 10.9476900 , 3.70831990 , 1031.25000
1.00000000 , 1.73032200 , 0.485067666 , 562.650024
2.00000000 , 0.366530538 , 0.105473399 , 281.325012
3.00000000 , 0.149380252 , 4.56873663E-02 , 187.688004