xper,xns,xew,xco
0.100000001 , 1.00654984 , 0.873440087 , 1083.50000
0.200000003 , 1.17404258 , 1.27063215 , 1250.00000
0.300000012 , 0.468858659 , 0.500004649 , 1250.00000
0.500000000 , 0.270315349 , 0.345860958 , 1250.00000
1.00000000 , 0.620659351 , 0.467358083 , 700.000000
2.00000000 , 8.09072107E-02 , 0.166254863 , 350.000000
3.00000000 , 2.61200760E-02 , 5.41519932E-02 , 233.500000