I added all the numbers together and came up with 27.
Then divided that by 4 and had 6.75.
So I multiplied that by 12 and got 81.
Then I took that and divided it by you age and got close enough to 4 that I guess I’ll have to go with 4.
Othwerwise I could be doing math all damn night! 
But, lets just leave me out and just pick whatever bottle your little heart desires. 