From 2007 only one team per nation is allowed to compete.

It wasn't until 1948 that women were allowed to compete on the floor.

Only men were allowed to compete on the tour in the early days.

Countries with higher income levels would be allowed to compete in 2005.

Within a few months, enough women had joined to allow them to compete.

This was the first time that women were allowed to compete in the events.

Participants were also allowed to compete in more than one style.

A total of 320 athletes are allowed to compete at the Games.

Two athletes per nation are allowed to compete in each of the 15 events.