xper,xns,xew,xco
0.100000001 , 7.72507668 , 4.09828854 , 1083.50000
0.200000003 , 9.79616451 , 4.63019657 , 1250.00000
0.300000012 , 12.6368942 , 6.97565842 , 1250.00000
0.500000000 , 12.1020632 , 13.9180279 , 1250.00000
1.00000000 , 3.43555379 , 1.73989034 , 700.000000
2.00000000 , 1.19871056 , 0.348331302 , 350.000000
3.00000000 , 0.670365870 , 0.148669094 , 233.500000