xper,xns,xew,xco
0.100000001 , 0.316023558 , 0.278798580 , 1082.00000
0.200000003 , 0.360124141 , 0.562721550 , 1250.00000
0.300000012 , 0.236749038 , 0.270110726 , 1250.00000
0.500000000 , 8.83182660E-02 , 9.92876515E-02 , 1000.00000
1.00000000 , 6.39199838E-02 , 6.69702664E-02 , 500.000000
2.00000000 , 3.72772217E-02 , 4.28384207E-02 , 250.000000
3.00000000 , 1.88273806E-02 , 1.11195343E-02 , 144.500000