xper,xns,xew,xco
0.100000001 , 293.811218 , 163.788925 , 892.650024
0.200000003 , 105.271492 , 62.2808228 , 1031.25000
0.300000012 , 157.239029 , 56.5797157 , 1031.25000
0.500000000 , 47.5124130 , 46.9283600 , 1031.25000
1.00000000 , 19.2300682 , 9.17135048 , 562.650024
2.00000000 , 1.51934576 , 0.912126124 , 281.325012
3.00000000 , 0.635141134 , 0.386252820 , 187.688004