xper,xns,xew,xco
0.100000001 , 24.5159168 , 11.7336006 , 1083.50000
0.200000003 , 51.0433311 , 11.0700893 , 1250.00000
0.300000012 , 25.5818863 , 10.5329247 , 1250.00000
0.500000000 , 7.10764313 , 1.88852704 , 1250.00000
1.00000000 , 1.75358498 , 0.609797239 , 700.000000
2.00000000 , 0.492601901 , 0.159905136 , 350.000000
3.00000000 , 0.222600728 , 6.58209398E-02 , 233.500000