xper,xns,xew,xco
0.100000001 , 11.3956041 , 8.37367630 , 892.650024
0.200000003 , 11.8779364 , 10.2098722 , 1031.25000
0.300000012 , 12.7126360 , 13.8633709 , 1031.25000
0.500000000 , 6.68660402 , 9.13307285 , 1031.25000
1.00000000 , 1.51152074 , 2.78945327 , 562.650024
2.00000000 , 0.798493862 , 0.581045389 , 281.325012
3.00000000 , 0.141719222 , 0.152605176 , 187.688004