xper,xns,xew,xco
0.100000001 , 0.381589264 , 0.336414605 , 892.650024
0.200000003 , 0.899701953 , 0.907813132 , 1031.25000
0.300000012 , 0.586754203 , 0.730029345 , 1031.25000
0.500000000 , 0.441721201 , 0.596295178 , 1031.25000
1.00000000 , 0.321086437 , 0.352326334 , 562.650024
2.00000000 , 0.144160479 , 6.96326494E-02 , 281.325012
3.00000000 , 3.77178304E-02 , 2.74175350E-02 , 187.688004