xper,xns,xew,xco
0.100000001 , 3.91746521 , 4.99609613 , 1083.50000
0.200000003 , 4.86990786 , 6.16519594 , 1250.00000
0.300000012 , 2.50439572 , 2.46061563 , 1250.00000
0.500000000 , 1.05156481 , 1.64304984 , 1250.00000
1.00000000 , 0.440535843 , 0.432190984 , 700.000000
2.00000000 , 0.623970985 , 0.600102425 , 350.000000
3.00000000 , 1.05188632 , 0.874380648 , 233.500000