xper,xns,xew,xco
0.100000001 , 10.2680111 , 10.5030680 , 1083.50000
0.200000003 , 22.6429844 , 30.2815704 , 1250.00000
0.300000012 , 15.5518732 , 16.9675808 , 1250.00000
0.500000000 , 11.9807529 , 8.05412960 , 1250.00000
1.00000000 , 3.49326539 , 1.74826765 , 700.000000
2.00000000 , 0.461308151 , 0.311629891 , 350.000000
3.00000000 , 0.209877729 , 0.170085758 , 233.500000