xper,xns,xew,xco
0.100000001 , 28.4981670 , 26.9357204 , 892.650024
0.200000003 , 36.5869522 , 48.6961288 , 1031.25000
0.300000012 , 78.1280289 , 62.0988846 , 1031.25000
0.500000000 , 62.3448486 , 64.4558487 , 1031.25000
1.00000000 , 10.2240677 , 13.9657383 , 562.650024
2.00000000 , 2.07793260 , 1.87107682 , 281.325012
3.00000000 , 0.733831346 , 0.876040518 , 187.688004