Passage: Age of Empires III has sold over 2 million copies as of May 2008. As well as receiving favorable reviews, it has garnered awards, including GameSpy's "Best RTS game of 2005", and was one of the best-selling games of 2005. In 2007, Age of Empires III was the seventh best-selling computer game, with over 313,000 copies sold that year.

Question: How many copies of the game was bought?
313,000