xper,xns,xew,xco
0.100000001 , 0.780190229 , 0.551317751 , 892.650024
0.200000003 , 0.352064878 , 0.348810703 , 1031.25000
0.300000012 , 0.356218338 , 0.347608268 , 1031.25000
0.500000000 , 0.245293930 , 0.231665611 , 1031.25000
1.00000000 , 0.105042107 , 9.32884142E-02 , 562.650024
2.00000000 , 8.18347409E-02 , 9.94045436E-02 , 281.325012
3.00000000 , 6.08642995E-02 , 5.69849759E-02 , 187.688004