xper,xns,xew,xco
0.100000001 , 0.451114982 , 0.799006701 , 892.650024
0.200000003 , 0.546376646 , 0.447009563 , 1031.25000
0.300000012 , 0.755032599 , 0.708704591 , 1031.25000
0.500000000 , 1.36976600 , 0.925875425 , 1031.25000
1.00000000 , 0.509762645 , 0.262557685 , 562.650024
2.00000000 , 0.115443304 , 0.114531994 , 281.325012
3.00000000 , 4.96881083E-02 , 7.28842095E-02 , 187.688004