xper,xns,xew,xco
0.100000001 , 0.748314679 , 0.762275517 , 1083.50000
0.200000003 , 0.884607434 , 0.834132493 , 1250.00000
0.300000012 , 0.940229654 , 0.848491549 , 1250.00000
0.500000000 , 1.48164129 , 1.27075553 , 1250.00000
1.00000000 , 2.49426556 , 1.88100827 , 700.000000
2.00000000 , 0.609364450 , 0.446835220 , 350.000000
3.00000000 , 0.258977622 , 0.136888936 , 233.500000