xper,xns,xew,xco
0.100000001 , 0.351688534 , 0.440764576 , 892.650024
0.200000003 , 0.532251418 , 0.436617970 , 1031.25000
0.300000012 , 0.675820589 , 0.775810838 , 1031.25000
0.500000000 , 1.07393360 , 1.04469359 , 1031.25000
1.00000000 , 0.324186772 , 0.340763390 , 562.650024
2.00000000 , 6.96547925E-02 , 7.57856816E-02 , 281.325012
3.00000000 , 2.34738309E-02 , 3.97790298E-02 , 187.688004