xper,xns,xew,xco
0.100000001 , 28.7454491 , 33.5000954 , 1083.50000
0.200000003 , 27.2951450 , 35.6770897 , 1250.00000
0.300000012 , 10.2087841 , 18.9000626 , 1250.00000
0.500000000 , 7.38040686 , 7.33355999 , 1250.00000
1.00000000 , 2.26776576 , 2.87634587 , 700.000000
2.00000000 , 0.844157696 , 0.486492336 , 350.000000
3.00000000 , 0.301275879 , 0.245053351 , 233.500000