A little over a year.
3 seconds sound clip from the A Few Good Men movie soundboard.
You can hear this line at 00:12:47 in the Blu-ray version of the movie.
Quote context
[...]
- I have no responsibilities here whatsoever.
- Come in, please. Have a seat.
- Lieutenant, how long have you been in the Navy?
- And how long have you been out of law school?
- I see.
- Have I done something wrong?
- No offense taken, in case you were wondering.
- Commander, Lieutenant Kaffee is generally considered the best litigator in our office.
[...]