xper,xns,xew,xco
0.100000001 , 3.83323145 , 3.48683214 , 1190.19995
0.200000003 , 1.64345276 , 1.54716671 , 1375.00000
0.300000012 , 1.25356758 , 1.06115937 , 1375.00000
0.500000000 , 0.726821065 , 0.961408317 , 1375.00000
1.00000000 , 1.03806686 , 1.04423130 , 800.250000
2.00000000 , 0.707948983 , 0.497936517 , 399.850006
3.00000000 , 0.524043024 , 0.327945381 , 266.750000