xper,xns,xew,xco
0.100000001 , 0.325426251 , 0.454708487 , 892.650024
0.200000003 , 0.548636317 , 0.483362079 , 1031.25000
0.300000012 , 0.816295624 , 0.993084967 , 1031.25000
0.500000000 , 1.09457552 , 1.01858962 , 1031.25000
1.00000000 , 0.480091095 , 0.391045779 , 562.650024
2.00000000 , 0.130020529 , 0.115522236 , 281.325012
3.00000000 , 4.53782715E-02 , 6.01394586E-02 , 187.688004