xper,xns,xew,xco
0.100000001 , 23.6522465 , 18.5624733 , 1083.50000
0.200000003 , 51.3607216 , 26.2925434 , 1250.00000
0.300000012 , 25.1834316 , 17.0510159 , 1250.00000
0.500000000 , 7.13930988 , 6.01672411 , 1250.00000
1.00000000 , 2.48300099 , 1.20769513 , 700.000000
2.00000000 , 0.493784010 , 0.214405954 , 350.000000
3.00000000 , 0.222878650 , 9.54622775E-02 , 233.500000