I really can't confirm it, but those numbers seems about right. It might be a bit undertracked in europe, but definitely not in japan and america. The game has sold 1.9 million copies in 2 weeks to a userbase of roughly 13.5 million, which is an amazing feat in itself, so i really don't think it's undertracked. And if it is, it's probably not undertracked by much.
Remember, there are no stupid questions. Just stupid people- Mr Garrison