Or why not release the data so that we can run queries on it ourselves? I doubt the entire dataset would be larger than a gig. Then we can run queries on top 10 by genres, by authors, by decades, by age group, gender, etc. Whatever we want.
You know Harry Potter & The Philosopher's Stone was checked out on 20-01-12, from my city's library .. how do you know who in my city checked it out?