xper,xns,xew,xco
0.100000001 , 1.32940638 , 0.849265456 , 892.650024
0.200000003 , 0.515377045 , 0.296829849 , 1031.25000
0.300000012 , 0.487417191 , 0.248571455 , 1031.25000
0.500000000 , 0.242515400 , 0.177929908 , 1031.25000
1.00000000 , 0.147868156 , 0.108903699 , 562.650024
2.00000000 , 8.05434883E-02 , 5.46761900E-02 , 281.325012
3.00000000 , 7.38829523E-02 , 5.76936789E-02 , 187.688004