xper,xns,xew,xco
0.100000001 , 1.96935344 , 2.74952269 , 892.650024
0.200000003 , 3.36214924 , 3.79639626 , 1031.25000
0.300000012 , 4.51498318 , 2.72076178 , 1031.25000
0.500000000 , 1.51371706 , 1.37462449 , 1031.25000
1.00000000 , 1.13192368 , 1.66586363 , 562.650024
2.00000000 , 0.567244291 , 0.531660914 , 281.325012
3.00000000 , 0.143265367 , 0.140022859 , 187.688004