xper,xns,xew,xco
0.100000001 , 3.83349442 , 3.48693585 , 1190.19995
0.200000003 , 1.64371634 , 1.54727161 , 1375.00000
0.300000012 , 1.25330663 , 1.06126356 , 1375.00000
0.500000000 , 0.726464152 , 0.961533844 , 1375.00000
1.00000000 , 1.03829789 , 1.04412520 , 800.250000
2.00000000 , 0.707900584 , 0.497867346 , 399.850006
3.00000000 , 0.524272561 , 0.328009397 , 266.750000