xper,xns,xew,xco
0.100000001 , 90.0181274 , 46.0320244 , 1083.50000
0.200000003 , 54.0761528 , 31.3138237 , 1250.00000
0.300000012 , 27.3585377 , 12.9717426 , 1250.00000
0.500000000 , 9.39323235 , 5.60983896 , 1250.00000
1.00000000 , 2.06551981 , 1.27471638 , 700.000000
2.00000000 , 0.503771722 , 0.241239235 , 350.000000
3.00000000 , 0.210371226 , 0.113715932 , 233.500000