Multiple Queries to Multiple Reports

I have a database that tracks cadets that will commission into the military
and they are broken into their year groups.

My problem is that to generate a report for each year group I need a
seperate query for each year group so I have multiple reports and multiple
queries in my database.

I'm trying to figure out a way to eliminate all those quieres down to one
query and report so when I click the button to bring up the report a box will
open up asking me to type in the year of commission and then the report will
only show those cadets commissioning in that year.

Any help would be appreciated.

Matt