xper,xns,xew,xco
0.100000001 , 1.00638199 , 0.873606920 , 1083.50000
0.200000003 , 1.17391551 , 1.27080166 , 1250.00000
0.300000012 , 0.468943387 , 0.499867260 , 1250.00000
0.500000000 , 0.270494282 , 0.345715255 , 1250.00000
1.00000000 , 0.620539010 , 0.467497468 , 700.000000
2.00000000 , 8.08494762E-02 , 0.166056231 , 350.000000
3.00000000 , 2.60832906E-02 , 5.38574196E-02 , 233.500000