xper,xns,xew,xco
0.100000001 , 1.88071930 , 2.74745727 , 892.650024
0.200000003 , 3.30383444 , 3.79834843 , 1031.25000
0.300000012 , 4.59345436 , 2.71883130 , 1031.25000
0.500000000 , 2.70774913 , 3.65978217 , 1031.25000
1.00000000 , 1.84205759 , 1.66382003 , 562.650024
2.00000000 , 0.604295015 , 0.529605389 , 281.325012
3.00000000 , 0.144522309 , 0.142047733 , 187.688004