xper,xns,xew,xco
0.100000001 , 0.904891133 , 0.589559555 , 892.650024
0.200000003 , 0.630600095 , 0.628636420 , 1031.25000
0.300000012 , 0.348897010 , 0.352575988 , 1031.25000
0.500000000 , 0.202474713 , 0.210848600 , 1031.25000
1.00000000 , 0.131824777 , 0.121866547 , 562.650024
2.00000000 , 0.104546063 , 9.84012634E-02 , 281.325012
3.00000000 , 7.35855401E-02 , 4.37907837E-02 , 187.688004