Every year?

I’ve seen this story about 50% of all torrent downloads being TV shows on several sites now, and they all irritate me (while not being the least bit surprising) for one reason. They all say that “a billion TV shows are downloaded every year.” Really? Every year? For how many years? Surely it can’t be more than one or two at the most. Yeah, I’m picky, but this just jumped out at me for some reason. Things move fast in the tech world, and saying “every year” rather than “in the last year” seems sloppy.