Beyond all of the hype of release madness that Air Jordans bring in any given calendar year, we often forget just how big of a business sneaker sales really are. It's a billion-dollar industry that continues to grow larger and larger. One person at the center of understanding those numbers is analyst Matt Powell of SportsOneSource. Matt is the guru of breaking down sales and trends in the sneaker industry. Now that 2013 is in the rear-view, Matt broke down SportsOneSource's data to see which Air Jordans brought in the most dough last year. Here are The Best-Selling Air Jordans of 2013.