xper,xns,xew,xco
0.100000001 , 52.8364143 , 25.5902081 , 892.650024
0.200000003 , 161.659836 , 54.9306450 , 1031.25000
0.300000012 , 86.6626587 , 38.4050980 , 1031.25000
0.500000000 , 18.7638264 , 6.34220648 , 1031.25000
1.00000000 , 4.74795485 , 0.977237046 , 562.650024
2.00000000 , 0.671697080 , 0.259585887 , 281.325012
3.00000000 , 0.349355280 , 0.101486340 , 187.688004