What is the size of each 2012 Olympic team?

Answer 1

I really depends on how many athletes qualify for each event. The more populas the country the more athletes they will send to the games. Each event has pre qualifiing rounds leading up to the olpymics. If a county qualifies then they can send those athletes to the games.

Answer 2

596 competitors according to Wikipedia.

Answer 3

There were 312 members in all.