US top ten

It is from week which ended 17.12. strange is to me that it contains 3 times sims.

1. Age of Empires III
2. Call of Duty 2
3. World of Warcraft
4. Civilization IV
5. The Sims 2 Nightlife
6. The Sims 2
7. Star Wars Battlefront II
8. Zoo Tycoon 2
9. The Sims 2 Holiday Ed.
10. Battlefield 2 Special Forces