xper,xns,xew,xco
0.100000001 , 3.83349442 , 3.48718762 , 1190.19995
0.200000003 , 1.64371634 , 1.54752219 , 1375.00000
0.300000012 , 1.25330663 , 1.06151366 , 1375.00000
0.500000000 , 0.726464152 , 0.961850762 , 1375.00000
1.00000000 , 1.03829789 , 1.04387474 , 800.250000
2.00000000 , 0.707900584 , 0.497723490 , 399.850006
3.00000000 , 0.524272561 , 0.328158617 , 266.750000