xper,xns,xew,xco
0.100000001 , 0.601802528 , 0.537029207 , 892.650024
0.200000003 , 0.952399671 , 0.831769586 , 1031.25000
0.300000012 , 1.24530506 , 0.985056341 , 1031.25000
0.500000000 , 1.28390431 , 1.30164385 , 1031.25000
1.00000000 , 0.502194822 , 0.632055581 , 562.650024
2.00000000 , 0.122056589 , 0.109982990 , 281.325012
3.00000000 , 3.33409943E-02 , 3.56316492E-02 , 187.688004