According to answers.com, the US sent 613 athletes to the 2004 Games.
Great Britain sent 271 athletes to compete in 22 sports at the 2004 Games in Athens.
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.
8000
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14000
2 athletes from Albania will compete at the 2014 Winter Olympics at Sochi, Russia.
6 athletes from Andorra will compete at the 2014 Winter Olympics at Sochi, Russia.
61 athletes from Australia will compete at the 2014 Winter Olympics at Sochi, Russia.
130 athletes from Austria will compete at the 2014 Winter Olympics at Sochi, Russia.
5 athletes from Azerbaijan will compete at the 2014 Winter Olympics at Sochi, Russia.
24 athletes from Belarus will compete at the 2014 Winter Olympics at Sochi, Russia.
7 athletes from Belgium will compete at the 2014 Winter Olympics at Sochi, Russia.