xper,xns,xew,xco
0.100000001 , 172.288239 , 194.165756 , 1190.19995
0.200000003 , 245.955185 , 240.509506 , 1375.00000
0.300000012 , 254.352737 , 281.937286 , 1375.00000
0.500000000 , 189.402802 , 211.262970 , 1375.00000
1.00000000 , 57.1111717 , 60.2881775 , 800.250000
2.00000000 , 12.6452894 , 12.9336452 , 399.850006
3.00000000 , 5.83653927 , 5.97427940 , 266.750000