xper,xns,xew,xco
0.100000001 , 227.972473 , 274.918640 , 1083.50000
0.200000003 , 336.403870 , 494.087646 , 1250.00000
0.300000012 , 290.458862 , 462.992706 , 1250.00000
0.500000000 , 259.891876 , 293.845428 , 1250.00000
1.00000000 , 100.384628 , 103.650543 , 700.000000
2.00000000 , 65.3568802 , 51.4690704 , 350.000000
3.00000000 , 30.4485302 , 25.7458744 , 233.500000