xper,xns,xew,xco
0.100000001 , 0.904169679 , 0.590674400 , 892.650024
0.200000003 , 0.629619122 , 0.627036870 , 1031.25000
0.300000012 , 0.350117058 , 0.349541485 , 1031.25000
0.500000000 , 0.219605267 , 0.210484996 , 1031.25000
1.00000000 , 0.131455600 , 0.120268039 , 562.650024
2.00000000 , 0.104703017 , 9.92623568E-02 , 281.325012
3.00000000 , 7.33825937E-02 , 5.63237295E-02 , 187.688004