xper,xns,xew,xco
0.100000001 , 0.315501153 , 0.403145194 , 1083.50000
0.200000003 , 0.528881669 , 0.337759614 , 1250.00000
0.300000012 , 0.243167281 , 0.171037421 , 1250.00000
0.500000000 , 0.121643499 , 8.37853029E-02 , 1250.00000
1.00000000 , 2.44898107E-02 , 1.99059192E-02 , 700.000000
2.00000000 , 9.35426541E-03 , 7.62593001E-03 , 350.000000
3.00000000 , 6.66099414E-03 , 4.60315030E-03 , 233.500000