xper,xns,xew,xco
0.100000001 , 0.491431147 , 0.448978961 , 1083.50000
0.200000003 , 0.350521415 , 0.375405341 , 1250.00000
0.300000012 , 0.318632901 , 0.375897944 , 1250.00000
0.500000000 , 0.173009098 , 0.181626320 , 1250.00000
1.00000000 , 0.161784634 , 0.174963057 , 700.000000
2.00000000 , 5.88202141E-02 , 6.62062988E-02 , 350.000000
3.00000000 , 1.43234720E-02 , 1.68307330E-02 , 233.500000