xper,xns,xew,xco
0.100000001 , 0.322047263 , 0.403325438 , 1083.50000
0.200000003 , 0.533063531 , 0.340816587 , 1250.00000
0.300000012 , 0.240650922 , 0.171177059 , 1250.00000
0.500000000 , 0.104373351 , 8.02483857E-02 , 1250.00000
1.00000000 , 2.66806427E-02 , 1.99541301E-02 , 700.000000
2.00000000 , 9.38610174E-03 , 7.56958500E-03 , 350.000000
3.00000000 , 6.93294080E-03 , 3.65668861E-03 , 233.500000