xper,xns,xew,xco
0.100000001 , 3.83324885 , 3.48712945 , 1190.19995
0.200000003 , 1.64346945 , 1.54746318 , 1375.00000
0.300000012 , 1.25355160 , 1.06145525 , 1375.00000
0.500000000 , 0.726807475 , 0.961777389 , 1375.00000
1.00000000 , 1.03808022 , 1.04393506 , 800.250000
2.00000000 , 0.707922757 , 0.497758985 , 399.850006
3.00000000 , 0.524056792 , 0.328122526 , 266.750000