xper,xns,xew,xco
0.100000001 , 1.97046065 , 2.74812627 , 892.650024
0.200000003 , 3.36103606 , 3.79780126 , 1031.25000
0.300000012 , 4.51388931 , 2.71936870 , 1031.25000
0.500000000 , 1.51138341 , 1.24556243 , 1031.25000
1.00000000 , 1.12443340 , 1.66444087 , 562.650024
2.00000000 , 0.196550295 , 0.530151606 , 281.325012
3.00000000 , 5.23390584E-02 , 0.141441643 , 187.688004