xper,xns,xew,xco
0.100000001 , 0.911265194 , 0.543254197 , 1083.50000
0.200000003 , 1.18111384 , 0.561896682 , 1250.00000
0.300000012 , 0.649305582 , 0.557875752 , 1250.00000
0.500000000 , 0.575432479 , 0.576524615 , 1250.00000
1.00000000 , 0.608999610 , 0.657362223 , 700.000000
2.00000000 , 0.877791822 , 0.850264192 , 350.000000
3.00000000 , 2.07191110 , 1.13932836 , 233.500000