xper,xns,xew,xco
0.100000001 , 0.689061642 , 0.758226991 , 1083.50000
0.200000003 , 0.610637844 , 0.630955279 , 1250.00000
0.300000012 , 0.466006815 , 0.566464007 , 1250.00000
0.500000000 , 9.00332779E-02 , 7.38358945E-02 , 1250.00000
1.00000000 , 2.06102747E-02 , 1.46106463E-02 , 700.000000
2.00000000 , 7.95943011E-03 , 5.77570545E-03 , 350.000000
3.00000000 , 4.76459507E-03 , 4.78125084E-03 , 233.500000