xper,xns,xew,xco
0.100000001 , 2.06146836 , 2.42746186 , 1083.50000
0.200000003 , 3.11006403 , 3.85093069 , 1250.00000
0.300000012 , 2.07138205 , 1.86308181 , 1250.00000
0.500000000 , 0.772289753 , 0.874410510 , 1250.00000
1.00000000 , 0.193969041 , 0.202325150 , 700.000000
2.00000000 , 4.07075025E-02 , 3.95474844E-02 , 350.000000
3.00000000 , 1.81514788E-02 , 1.79923400E-02 , 233.500000