xper,xns,xew,xco
0.100000001 , 0.306999981 , 0.867635489 , 973.799988
0.200000003 , 0.284325600 , 0.352579504 , 1125.00000
0.300000012 , 0.299364090 , 0.406754553 , 1125.00000
0.500000000 , 0.707207024 , 0.604127765 , 1125.00000
1.00000000 , 0.609637856 , 0.509876251 , 675.000000
2.00000000 , 0.418344855 , 0.381050378 , 337.500000
3.00000000 , 0.250227720 , 0.310668081 , 225.000000