During Apple's annual stockholders meeting in Cupertino today, Apple CEO Tim Cook revealed that Apple sold more than $1 billion worth of its Apple TV set-top box in 2013, putting sales at close to 10 million units for the year. This is a roughly double the 5 million it sold in fiscal 2012, which was double its Apple TV sales in 2011. Cook has traditionally called the Apple TV a "hobby", but said today that "it's a little more difficult to call it a hobby these days". Horace Dediu created a chart showing the impressive growth of Apple TV sales over the past several years, making it the fastest growing device in Apple's hardware li