It varies but, 10,568 competed at the London 2012 Summer Olympic Games and about 2,800 athletes are expected to compete at the 2014 Winter Olympics.
About 2,800 athletes are expected to compete at the 2014 Olympics.
The US has 596 athletes competing in the 2008 Summer Olympic Games.
Canada planned to send 331 ahtletes to compete in the 2008 olympic games
According to the United States Olympic Committee, the US sent 613 athletes to compete in the 2004 Summer Olympic Games in Athens and 211 athletes to compete in the 2006 Winter Olympic Games in Turin.
There will be 302 events that the athletes will compete in
Around 10,500 athletes from 204 National Olympic Committees (NOCs) are expected to participate
Every country decides on its own that how many athletes it will send to olympic, first they compete before olympic and those who qulify have given chance in olympic.