xper,xns,xew,xco
0.100000001 , 2.82957697 , 2.26254416 , 892.650024
0.200000003 , 4.79260302 , 3.57219005 , 1031.25000
0.300000012 , 3.66147661 , 4.51342392 , 1031.25000
0.500000000 , 3.82385254 , 1.66028988 , 1031.25000
1.00000000 , 1.09626222 , 0.443261206 , 562.650024
2.00000000 , 0.238431171 , 0.131959438 , 281.325012
3.00000000 , 0.143816590 , 6.08506352E-02 , 187.688004