xper,xns,xew,xco
0.100000001 , 0.316519111 , 0.507522643 , 892.650024
0.200000003 , 0.400655597 , 0.492420226 , 1031.25000
0.300000012 , 0.453215182 , 0.731294870 , 1031.25000
0.500000000 , 0.989935160 , 1.06203628 , 1031.25000
1.00000000 , 0.414404958 , 0.589195132 , 562.650024
2.00000000 , 0.157906175 , 0.143577009 , 281.325012
3.00000000 , 7.50365406E-02 , 7.30137303E-02 , 187.688004