xper,xns,xew,xco
0.100000001 , 0.316522926 , 0.507534742 , 892.650024
0.200000003 , 0.400658846 , 0.492433220 , 1031.25000
0.300000012 , 0.453218639 , 0.731286824 , 1031.25000
0.500000000 , 0.989931643 , 1.06205499 , 1031.25000
1.00000000 , 0.414399147 , 0.589204133 , 562.650024
2.00000000 , 0.157908246 , 0.143582866 , 281.325012
3.00000000 , 7.50336498E-02 , 7.30225593E-02 , 187.688004