xper,xns,xew,xco
0.100000001 , 0.689288497 , 0.758211076 , 1083.50000
0.200000003 , 0.610880494 , 0.630947113 , 1250.00000
0.300000012 , 0.466116011 , 0.566455185 , 1250.00000
0.500000000 , 9.01481584E-02 , 7.38269761E-02 , 1250.00000
1.00000000 , 2.07259376E-02 , 2.78095677E-02 , 700.000000
2.00000000 , 8.03171098E-03 , 5.79090649E-03 , 350.000000
3.00000000 , 5.08080982E-03 , 5.14214346E-03 , 233.500000