xper,xns,xew,xco
0.100000001 , 293.811096 , 163.788788 , 892.650024
0.200000003 , 105.271584 , 62.2809486 , 1031.25000
0.300000012 , 157.239136 , 56.5795593 , 1031.25000
0.500000000 , 47.5125732 , 46.9281578 , 1031.25000
1.00000000 , 19.2302284 , 9.17098999 , 562.650024
2.00000000 , 1.51919758 , 0.911876857 , 281.325012
3.00000000 , 0.635065794 , 0.385747969 , 187.688004