xper,xns,xew,xco
0.100000001 , 0.994225621 , 0.848052621 , 1083.50000
0.200000003 , 0.884773195 , 0.834167838 , 1250.00000
0.300000012 , 0.940360725 , 0.848419905 , 1250.00000
0.500000000 , 1.48174143 , 1.27079034 , 1250.00000
1.00000000 , 2.49415255 , 1.88102889 , 700.000000
2.00000000 , 0.609178007 , 0.446777761 , 350.000000
3.00000000 , 0.259173959 , 0.136906445 , 233.500000