xper,xns,xew,xco
0.100000001 , 0.601781070 , 0.536969900 , 892.650024
0.200000003 , 0.952381968 , 0.831663549 , 1031.25000
0.300000012 , 1.24528360 , 0.984931886 , 1031.25000
0.500000000 , 1.28381801 , 1.30171454 , 1031.25000
1.00000000 , 0.502139807 , 0.632100642 , 562.650024
2.00000000 , 0.122219265 , 0.109733663 , 281.325012
3.00000000 , 3.32017243E-02 , 3.54310796E-02 , 187.688004