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.
497 in the summer Olympics so far.
There were no female competitors at the 1896 Games in Athens. The first Games that women competed in was the 1900 Games in Paris.
About 35
14000
There is no country called Rio. Therefore it does not have any competitors in the Olympics
Great Britain sent a team of 312 athletes to compete at the 2008 Games in Beijing.
There are a total of 380 competitors in 23 sports competing for China at the 2012 Summer Olympics.
10,942 competitors (according to the BBC)
12
4 of them
3
5687