xper,xns,xew,xco
0.100000001 , 0.901346982 , 0.932988584 , 892.650024
0.200000003 , 0.892284811 , 1.15893817 , 1031.25000
0.300000012 , 1.14854395 , 1.25688803 , 1031.25000
0.500000000 , 1.83730185 , 2.50263309 , 1031.25000
1.00000000 , 2.25753355 , 1.72695041 , 562.650024
2.00000000 , 1.88699043 , 2.39137220 , 281.325012
3.00000000 , 1.21179068 , 1.26485920 , 187.688004