Deathly Hallows to 7 on LibraryThing

One of the metrix I've been keeping track of since the release of Deathly Hallows was how long it would take for it to reach the 7 position on LibraryThing's top books list. I just noticed that it has reached that level. It took about 1 1/2 years. The number of copies is larger than The Da Vinci Code. Harry Potter books now hold the top seven positions. The series is out of order.