xper,xns,xew,xco
0.100000001 , 0.218440190 , 0.284447998 , 1083.50000
0.200000003 , 5.74270375E-02 , 5.12580909E-02 , 1250.00000
0.300000012 , 3.90311591E-02 , 3.55069563E-02 , 1250.00000
0.500000000 , 3.50523181E-02 , 3.05648223E-02 , 1250.00000
1.00000000 , 2.83392370E-02 , 2.22408604E-02 , 700.000000
2.00000000 , 1.81247368E-02 , 1.29508600E-02 , 350.000000
3.00000000 , 8.53089895E-03 , 1.00496607E-02 , 233.500000