xper,xns,xew,xco
0.100000001 , 0.689031124 , 0.758222818 , 1083.50000
0.200000003 , 0.610604286 , 0.630952418 , 1250.00000
0.300000012 , 0.465998799 , 0.566461086 , 1250.00000
0.500000000 , 9.00241733E-02 , 7.38328099E-02 , 1250.00000
1.00000000 , 2.06010547E-02 , 1.46069787E-02 , 700.000000
2.00000000 , 7.98086356E-03 , 5.77980792E-03 , 350.000000
3.00000000 , 4.69129300E-03 , 5.03150793E-03 , 233.500000