xper,xns,xew,xco
0.100000001 , 2.38561749 , 1.50761163 , 892.650024
0.200000003 , 2.45981908 , 1.80524933 , 1031.25000
0.300000012 , 2.57078242 , 2.02216291 , 1031.25000
0.500000000 , 6.12045670 , 5.02503061 , 1031.25000
1.00000000 , 4.77759361 , 2.68236208 , 562.650024
2.00000000 , 2.10293508 , 2.00677323 , 281.325012
3.00000000 , 1.52760172 , 1.37499726 , 187.688004