xper,xns,xew,xco
0.100000001 , 28.7448349 , 33.4987526 , 1083.50000
0.200000003 , 27.2957668 , 35.6757545 , 1250.00000
0.300000012 , 10.2094088 , 18.9013901 , 1250.00000
0.500000000 , 7.38102245 , 7.33222198 , 1250.00000
1.00000000 , 2.26717019 , 2.87768340 , 700.000000
2.00000000 , 0.843208671 , 0.485174000 , 350.000000
3.00000000 , 0.302154213 , 0.236673847 , 233.500000