xper,xns,xew,xco
0.100000001 , 10.5716982 , 12.5855026 , 892.650024
0.200000003 , 18.1469975 , 23.6325150 , 1031.25000
0.300000012 , 23.1785183 , 19.6114807 , 1031.25000
0.500000000 , 9.44168854 , 7.91187572 , 1031.25000
1.00000000 , 2.41014552 , 1.60299242 , 562.650024
2.00000000 , 0.721256077 , 0.983731329 , 281.325012
3.00000000 , 0.239637300 , 0.217069194 , 187.688004