xper,xns,xew,xco
0.100000001 , 0.316401958 , 0.507382810 , 892.650024
0.200000003 , 0.400550723 , 0.492270023 , 1031.25000
0.300000012 , 0.453103393 , 0.731387675 , 1031.25000
0.500000000 , 0.990057170 , 1.06182015 , 1031.25000
1.00000000 , 0.414588422 , 0.589082658 , 562.650024
2.00000000 , 0.157857537 , 0.143510565 , 281.325012
3.00000000 , 7.51554817E-02 , 7.28897452E-02 , 187.688004