xper,xns,xew,xco
0.100000001 , 1.52818632 , 1.41215932 , 1083.50000
0.200000003 , 3.47292972 , 2.39146495 , 1250.00000
0.300000012 , 4.46068001 , 4.36543274 , 1250.00000
0.500000000 , 4.79400730 , 4.49033070 , 1250.00000
1.00000000 , 1.30826247 , 2.40377903 , 700.000000
2.00000000 , 0.684476972 , 1.10440373 , 350.000000
3.00000000 , 0.421114624 , 0.538853586 , 233.500000