Is the Middle School Students' Mathematical Olympiad divided into annual groups?
Middle school students' mathematical Olympics are divided into annual groups. After two rounds of fierce competition by the national training team, six people were finally selected to form the national team to participate in the international Olympic Games. Each participating country can send up to 6 players and 2 team leaders to participate in the competition. Students should be under the age of 20, and the highest education level is middle school.