xper,xns,xew,xco
0.100000001 , 2.25210524 , 1.47376740 , 1083.50000
0.200000003 , 4.78899860 , 3.51165295 , 1250.00000
0.300000012 , 5.34053898 , 4.68767405 , 1250.00000
0.500000000 , 3.51901340 , 2.51569676 , 1250.00000
1.00000000 , 0.434590369 , 0.467862606 , 700.000000
2.00000000 , 0.171477735 , 9.12228972E-02 , 350.000000
3.00000000 , 9.06763002E-02 , 3.70995253E-02 , 233.500000