I've been almost exactly the same age as the trio /character throughout all the films. I can't believe it's ending! Merlin's beard...
Philosopher's Stone- 10
Chamber of Secrets- 11
Prisoner of Azkaban- 13
Goblet of Fire- 14
Order of the Phoenix- 16
Half Blood Prince- 18 (would have been 17 had they not delayed it)
Deathly Hallows part I: 19
Deathly Hallows part II: 20