At the end of the year, Sony offers a personalized round-up of your assorted video game stats like your most-played games, how many hours you played overall, what day of the week was your gaming day, and other interesting tidbits.
I personally love this kind of information and was surprised to learn that on my PS4, my most-played games were Spider-Man, Ni no Kuni II, and Shadow of the Colossus. I also spent a lot more time in VR than I expected.
To see your own stats just head here and log in.
Source: Game Informer Take A Look At Your PlayStation 4 Year-End Stats