xper,xns,xew,xco
0.100000001 , 1.28777719 , 0.848052621 , 1083.50000
0.200000003 , 1.25883627 , 0.834167838 , 1250.00000
0.300000012 , 0.941043317 , 0.848419905 , 1250.00000
0.500000000 , 1.48226404 , 1.27079034 , 1250.00000
1.00000000 , 2.49356294 , 1.88102889 , 700.000000
2.00000000 , 0.608204126 , 0.446777761 , 350.000000
3.00000000 , 0.260188103 , 0.136906445 , 233.500000