xper,xns,xew,xco
0.100000001 , 227.516800 , 274.369293 , 1083.50000
0.200000003 , 335.731537 , 493.100311 , 1250.00000
0.300000012 , 289.878387 , 462.067535 , 1250.00000
0.500000000 , 259.372559 , 293.258057 , 1250.00000
1.00000000 , 100.184013 , 103.443504 , 700.000000
2.00000000 , 65.2260208 , 51.3661118 , 350.000000
3.00000000 , 30.3877316 , 25.6945229 , 233.500000