xper,xns,xew,xco
0.100000001 , 27.3062687 , 25.4342461 , 892.650024
0.200000003 , 62.1702194 , 28.7857037 , 1031.25000
0.300000012 , 60.1005363 , 23.6221733 , 1031.25000
0.500000000 , 22.4566269 , 22.1469803 , 1031.25000
1.00000000 , 8.05064487 , 7.26543045 , 562.650024
2.00000000 , 1.02662015 , 0.980537057 , 281.325012
3.00000000 , 0.468494564 , 0.444236994 , 187.688004