xper,xns,xew,xco
0.100000001 , 28.6748772 , 30.9987545 , 1083.50000
0.200000003 , 27.2875366 , 35.0224686 , 1250.00000
0.300000012 , 10.2054052 , 18.3663597 , 1250.00000
0.500000000 , 7.32572460 , 7.36931515 , 1250.00000
1.00000000 , 2.22002339 , 2.79907155 , 700.000000
2.00000000 , 0.842260718 , 0.508601785 , 350.000000
3.00000000 , 0.303932339 , 0.261525989 , 233.500000