xper,xns,xew,xco
0.100000001 , 0.482101649 , 0.900962055 , 973.799988
0.200000003 , 0.627695739 , 0.432594299 , 1125.00000
0.300000012 , 0.628260493 , 0.533777773 , 1125.00000
0.500000000 , 1.12388313 , 1.36800265 , 1125.00000
1.00000000 , 0.989912570 , 0.708888650 , 675.000000
2.00000000 , 0.564917505 , 0.498211235 , 337.500000
3.00000000 , 0.336109877 , 0.282090425 , 225.000000