xper,xns,xew,xco
0.100000001 , 3.92650867 , 4.99042416 , 1083.50000
0.200000003 , 4.87897205 , 6.16961050 , 1250.00000
0.300000012 , 2.49535251 , 2.46628571 , 1250.00000
0.500000000 , 1.06057703 , 1.63733685 , 1250.00000
1.00000000 , 0.655693650 , 0.426517308 , 700.000000
2.00000000 , 0.607959151 , 0.603737175 , 350.000000
3.00000000 , 1.10229945 , 0.870718002 , 233.500000