xper,xns,xew,xco
0.100000001 , 3.83274007 , 3.48747325 , 1190.19995
0.200000003 , 1.64295936 , 1.54780781 , 1375.00000
0.300000012 , 1.25405264 , 1.06179690 , 1375.00000
0.500000000 , 0.727622271 , 0.962291658 , 1375.00000
1.00000000 , 1.03762150 , 1.04360449 , 800.250000
2.00000000 , 0.707682133 , 0.497663349 , 399.850006
3.00000000 , 0.523607254 , 0.328242332 , 266.750000