xper,xns,xew,xco
0.100000001 , 1.28906322 , 1.05836606 , 1083.50000
0.200000003 , 1.26013649 , 1.29932201 , 1250.00000
0.300000012 , 0.940514743 , 0.848247707 , 1250.00000
0.500000000 , 1.48185885 , 1.27090573 , 1250.00000
1.00000000 , 2.49402165 , 1.88099813 , 700.000000
2.00000000 , 0.608957469 , 0.446620971 , 350.000000
3.00000000 , 0.259405345 , 0.136987001 , 233.500000