xper,xns,xew,xco
0.100000001 , 0.451084584 , 0.798910975 , 892.650024
0.200000003 , 0.546412885 , 0.446817845 , 1031.25000
0.300000012 , 0.755009055 , 0.708752990 , 1031.25000
0.500000000 , 1.36973608 , 0.925913572 , 1031.25000
1.00000000 , 0.509780407 , 0.262517452 , 562.650024
2.00000000 , 0.115426682 , 0.114445567 , 281.325012
3.00000000 , 4.97103184E-02 , 7.27848411E-02 , 187.688004