xper,xns,xew,xco
0.100000001 , 0.316776484 , 0.508002520 , 892.650024
0.200000003 , 0.400884807 , 0.492931485 , 1031.25000
0.300000012 , 0.453460336 , 0.731561601 , 1031.25000
0.500000000 , 0.989671230 , 1.06277704 , 1031.25000
1.00000000 , 0.414000541 , 0.589550495 , 562.650024
2.00000000 , 0.157989770 , 0.143795505 , 281.325012
3.00000000 , 7.47761801E-02 , 7.34315291E-02 , 187.688004