xper,xns,xew,xco
0.100000001 , 1.56693935 , 1.15888870 , 892.650024
0.200000003 , 1.96321249 , 1.85200989 , 1031.25000
0.300000012 , 2.76876259 , 2.06122446 , 1031.25000
0.500000000 , 2.38853359 , 2.12778831 , 1031.25000
1.00000000 , 0.904288709 , 0.510627329 , 562.650024
2.00000000 , 0.143774614 , 9.37428102E-02 , 281.325012
3.00000000 , 4.15798277E-02 , 3.10833193E-02 , 187.688004