If PornWatchers (it's a search engine for porn) is to be believed, it appears that people all over the world has watched about 1.2 million years worth of porn since 2006--and they're only talking about data off two major porn sites: YouPorn and xHamster.
That doesn't include all the others (whose URLs we conveniently forget at the moment), which should actually put that number to a billion zizillion years worth of porn watching.
The analyzed two sites had more than 700,000 video clips, each of which averages 11 minutes. The astounding number of such porn clips means wankers like YOU does not have to watch any video twice--unless you really, really like fapping to it.
More about these amazing facts you'd want to teach your kids someday.