xper,xns,xew,xco
0.100000001 , 0.451063544 , 0.799048722 , 892.650024
0.200000003 , 0.546439171 , 0.447093189 , 1031.25000
0.300000012 , 0.754995286 , 0.708683252 , 1031.25000
0.500000000 , 1.36971653 , 0.925856888 , 1031.25000
1.00000000 , 0.509787738 , 0.262577593 , 562.650024
2.00000000 , 0.115420133 , 0.114571437 , 281.325012
3.00000000 , 4.97220866E-02 , 7.29284659E-02 , 187.688004