xper,xns,xew,xco
0.100000001 , 0.904335737 , 0.590938509 , 892.650024
0.200000003 , 0.630087793 , 0.626271605 , 1031.25000
0.300000012 , 0.349765301 , 0.348548234 , 1031.25000
0.500000000 , 0.244464278 , 0.233161375 , 1031.25000
1.00000000 , 0.131489739 , 0.119821325 , 562.650024
2.00000000 , 0.104746632 , 9.90617424E-02 , 281.325012
3.00000000 , 7.35628605E-02 , 5.92354760E-02 , 187.688004