6 4.4567
 7 5.77
 8 5.9787
 9 7.3317
 10 7.3182
 11 6.5844
 12 7.8182
 13 7.8351
 14 11.0223
 15 10.6738
 16 10.8361
 17 13.615
 18 13.531