xper,xns,xew,xco
0.100000001 , 0.450968742 , 0.798795521 , 892.650024
0.200000003 , 0.546557307 , 0.446074218 , 1031.25000
0.300000012 , 0.754932463 , 0.708939195 , 1031.25000
0.500000000 , 1.36962724 , 0.926003098 , 1031.25000
1.00000000 , 0.509822130 , 0.262415498 , 562.650024
2.00000000 , 0.115388609 , 0.114138588 , 281.325012
3.00000000 , 4.97815758E-02 , 7.24090710E-02 , 187.688004