xper,xns,xew,xco
0.100000001 , 3.83309746 , 3.48739648 , 1190.19995
0.200000003 , 1.64331877 , 1.54773045 , 1375.00000
0.300000012 , 1.25370061 , 1.06172073 , 1375.00000
0.500000000 , 0.727020025 , 0.962120414 , 1375.00000
1.00000000 , 1.03794789 , 1.04366875 , 800.250000
2.00000000 , 0.707926512 , 0.497613877 , 399.850006
3.00000000 , 0.523924887 , 0.328270197 , 266.750000