xper,xns,xew,xco
0.100000001 , 293.811157 , 163.788788 , 892.650024
0.200000003 , 105.271568 , 62.2809334 , 1031.25000
0.300000012 , 157.239136 , 56.5795784 , 1031.25000
0.500000000 , 47.5125046 , 46.9281693 , 1031.25000
1.00000000 , 19.2302036 , 9.17092705 , 562.650024
2.00000000 , 1.51920927 , 0.911822796 , 281.325012
3.00000000 , 0.635060191 , 0.385708570 , 187.688004