xper,xns,xew,xco
0.100000001 , 10.5692511 , 12.5875826 , 892.650024
0.200000003 , 18.1445198 , 23.6304245 , 1031.25000
0.300000012 , 23.1809635 , 19.6093864 , 1031.25000
0.500000000 , 5.81640530 , 4.38356018 , 1031.25000
1.00000000 , 1.65579665 , 1.49513388 , 562.650024
2.00000000 , 0.723690808 , 0.770637512 , 281.325012
3.00000000 , 0.242068976 , 0.215008795 , 187.688004