xper,xns,xew,xco
0.100000001 , 0.786924541 , 0.580513299 , 1083.50000
0.200000003 , 0.727809012 , 0.714781225 , 1250.00000
0.300000012 , 1.14363527 , 1.12020338 , 1250.00000
0.500000000 , 0.768401623 , 0.940242350 , 1250.00000
1.00000000 , 1.26761603 , 1.92567384 , 700.000000
2.00000000 , 0.405717403 , 0.513898253 , 350.000000
3.00000000 , 0.136049271 , 0.219965324 , 233.500000