xper,xns,xew,xco
0.100000001 , 293.811035 , 163.788757 , 892.650024
0.200000003 , 105.271652 , 62.2809830 , 1031.25000
0.300000012 , 157.239212 , 56.5795403 , 1031.25000
0.500000000 , 47.5126686 , 46.9281349 , 1031.25000
1.00000000 , 19.2302704 , 9.17099571 , 562.650024
2.00000000 , 1.51923287 , 0.911834598 , 281.325012
3.00000000 , 0.635068595 , 0.385726154 , 187.688004