xper,xns,xew,xco
0.100000001 , 0.315486610 , 0.403115898 , 1083.50000
0.200000003 , 0.528896332 , 0.337730557 , 1250.00000
0.300000012 , 0.243181780 , 0.171066478 , 1250.00000
0.500000000 , 0.121628731 , 8.37559551E-02 , 1250.00000
1.00000000 , 2.44713612E-02 , 1.99644528E-02 , 700.000000
2.00000000 , 9.33631510E-03 , 7.56562036E-03 , 350.000000
3.00000000 , 6.68801833E-03 , 4.63670725E-03 , 233.500000