xper,xns,xew,xco
0.100000001 , 0.952206433 , 0.894641578 , 1083.50000
0.200000003 , 0.298229605 , 0.442177594 , 1250.00000
0.300000012 , 0.109020092 , 0.230244502 , 1250.00000
0.500000000 , 3.91643904E-02 , 6.00785278E-02 , 1250.00000
1.00000000 , 2.09470335E-02 , 1.63240675E-02 , 700.000000
2.00000000 , 8.61287769E-03 , 7.58027844E-03 , 350.000000
3.00000000 , 4.19359142E-03 , 4.56913840E-03 , 233.500000