xper,xns,xew,xco
0.100000001 , 1.94991374 , 1.45687127 , 1083.50000
0.200000003 , 6.05035734 , 3.96924162 , 1250.00000
0.300000012 , 6.10867262 , 4.66558123 , 1250.00000
0.500000000 , 4.07457018 , 2.54651237 , 1250.00000
1.00000000 , 0.301024944 , 0.466958642 , 700.000000
2.00000000 , 0.114775375 , 9.17795524E-02 , 350.000000
3.00000000 , 2.66017094E-02 , 2.87143253E-02 , 233.500000