xper,xns,xew,xco
0.100000001 , 1.67882550 , 1.02800691 , 892.650024
0.200000003 , 0.598608792 , 0.698526442 , 1031.25000
0.300000012 , 0.516020834 , 0.733724296 , 1031.25000
0.500000000 , 0.465185076 , 0.497991323 , 1031.25000
1.00000000 , 0.394682407 , 0.433502644 , 562.650024
2.00000000 , 0.196733460 , 0.165661380 , 281.325012
3.00000000 , 6.08237125E-02 , 7.90562406E-02 , 187.688004