United States and China
596.
The Olympic Games that allowed professional athletes to compete were the Summer Olympics starting in 1984 and the Winter Olympics starting in 1992.
Cross country skiing is a Winter Olympic sport. Cross country cycling is a Summer Olympic sport.
Norway Winter Finland Summer
Austria Winter Japan Summer
Austria Winter Canada Summer
At the 2010 Winter Games in Vancouver, Iceland sent athletes to compete in alpine skiing. At previous Winter Olympics, athletes representing Iceland have also competed in cross country skiing and ski jumping. They have won no Winter Olympic medals.
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.
Switzerland Winter United Kingdom Summer
Italy Winter Australia Sweden Summer
United States Winter Italy Summer
The olympic games are a bunch of compotitions that the best athletes all over the world get to compete in. There are summer Olympics and winter Olympics. Also the Olympics started in Greece.