xper,xns,xew,xco
0.100000001 , 86.1897049 , 44.6745377 , 1083.50000
0.200000003 , 55.7116585 , 30.4466839 , 1250.00000
0.300000012 , 27.1090183 , 13.1170778 , 1250.00000
0.500000000 , 9.39731598 , 5.59737062 , 1250.00000
1.00000000 , 2.02436256 , 1.27728248 , 700.000000
2.00000000 , 0.489554673 , 0.247093767 , 350.000000
3.00000000 , 0.203666970 , 0.115975462 , 233.500000