xper,xns,xew,xco
0.100000001 , 23.6499348 , 18.5618763 , 1083.50000
0.200000003 , 51.3629303 , 26.2931080 , 1250.00000
0.300000012 , 25.1811275 , 17.0515957 , 1250.00000
0.500000000 , 7.13700867 , 6.01651382 , 1250.00000
1.00000000 , 2.48529029 , 1.20794439 , 700.000000
2.00000000 , 0.496506661 , 0.215005368 , 350.000000
3.00000000 , 0.226363212 , 9.51745883E-02 , 233.500000