xper,xns,xew,xco
0.100000001 , 1.02199876 , 2.25840139 , 1083.50000
0.200000003 , 2.42253971 , 2.39304328 , 1250.00000
0.300000012 , 1.33939850 , 1.29392362 , 1250.00000
0.500000000 , 0.783912599 , 0.615881622 , 1250.00000
1.00000000 , 0.250010848 , 0.153013080 , 700.000000
2.00000000 , 5.47415391E-02 , 2.85619590E-02 , 350.000000
3.00000000 , 2.41651088E-02 , 1.38467355E-02 , 233.500000