xper,xns,xew,xco
0.100000001 , 0.451026767 , 0.798997104 , 892.650024
0.200000003 , 0.546483755 , 0.446991295 , 1031.25000
0.300000012 , 0.754968226 , 0.708709478 , 1031.25000
0.500000000 , 1.36968124 , 0.925883532 , 1031.25000
1.00000000 , 0.509805977 , 0.262549788 , 562.650024
2.00000000 , 0.115403257 , 0.114521608 , 281.325012
3.00000000 , 4.97481637E-02 , 7.28740618E-02 , 187.688004