xper,xns,xew,xco
0.100000001 , 3.83318925 , 3.48715639 , 1190.19995
0.200000003 , 1.64341092 , 1.54749048 , 1375.00000
0.300000012 , 1.25360906 , 1.06148183 , 1375.00000
0.500000000 , 0.726889431 , 0.961812377 , 1375.00000
1.00000000 , 1.03802860 , 1.04390633 , 800.250000
2.00000000 , 0.707925141 , 0.497743636 , 399.850006
3.00000000 , 0.524006128 , 0.328136653 , 266.750000