xper,xns,xew,xco
0.100000001 , 0.904139638 , 0.590604007 , 892.650024
0.200000003 , 0.629577279 , 0.627189159 , 1031.25000
0.300000012 , 0.350167900 , 0.349769533 , 1031.25000
0.500000000 , 0.219665125 , 0.210493505 , 1031.25000
1.00000000 , 0.131440327 , 0.120378196 , 562.650024
2.00000000 , 0.104708403 , 9.94939432E-02 , 281.325012
3.00000000 , 7.33729377E-02 , 5.66310547E-02 , 187.688004