xper,xns,xew,xco
0.100000001 , 314.150513 , 343.645294 , 1083.50000
0.200000003 , 572.878052 , 575.178528 , 1250.00000
0.300000012 , 1103.08496 , 895.967346 , 1250.00000
0.500000000 , 475.828430 , 623.490173 , 1250.00000
1.00000000 , 137.052658 , 207.874405 , 700.000000
2.00000000 , 49.8853836 , 54.5560188 , 350.000000
3.00000000 , 19.3117199 , 23.7951736 , 233.500000