xper,xns,xew,xco
0.100000001 , 0.905125499 , 0.588718116 , 892.650024
0.200000003 , 0.630739510 , 0.629199445 , 1031.25000
0.300000012 , 0.319259584 , 0.315015703 , 1031.25000
0.500000000 , 0.202389613 , 0.211301625 , 1031.25000
1.00000000 , 0.131981432 , 0.122957654 , 562.650024
2.00000000 , 0.104436599 , 9.78283584E-02 , 281.325012
3.00000000 , 7.35533535E-02 , 4.42197137E-02 , 187.688004