xper,xns,xew,xco
0.100000001 , 1.94970441 , 1.45706213 , 1083.50000
0.200000003 , 6.05056763 , 3.96941638 , 1250.00000
0.300000012 , 6.10888529 , 4.66578102 , 1250.00000
0.500000000 , 4.07435369 , 2.54671407 , 1250.00000
1.00000000 , 0.301270068 , 0.351596445 , 700.000000
2.00000000 , 8.87052268E-02 , 6.64701760E-02 , 350.000000
3.00000000 , 2.48695165E-02 , 2.85012368E-02 , 233.500000