xper,xns,xew,xco
0.100000001 , 12.9574518 , 8.16359043 , 1083.50000
0.200000003 , 30.0776691 , 23.2260284 , 1250.00000
0.300000012 , 27.3548183 , 16.7848835 , 1250.00000
0.500000000 , 13.2173758 , 6.05194616 , 1250.00000
1.00000000 , 2.15660572 , 2.06385016 , 700.000000
2.00000000 , 0.587067604 , 0.367346317 , 350.000000
3.00000000 , 0.287179470 , 0.152271986 , 233.500000