xper,xns,xew,xco
0.100000001 , 0.480162710 , 0.827474177 , 892.650024
0.200000003 , 0.527980685 , 0.856024981 , 1031.25000
0.300000012 , 0.556783795 , 1.00411808 , 1031.25000
0.500000000 , 0.557514906 , 1.13959825 , 1031.25000
1.00000000 , 1.24523306 , 1.91874123 , 562.650024
2.00000000 , 0.824482322 , 0.633334935 , 281.325012
3.00000000 , 0.359163076 , 0.392886281 , 187.688004