Copyright holders can request that Google pulls links in its results that infringe copyright - so Game of Thrones torrents, for example - and those copyright holders have obviously been very busy throughout the course of 2016.
Copyrights and copy wrongs
The takedown requests that weren't acted on were found to be invalid, not linking to copyright infringing content, or duplicates of earlier requests. In total, Google has now removed more than two billion URLs across 945,000 different domains.
Google and other search engines are obliged to take responsibility for linking to content that infringes copyright, although government regulations vary from country to country, and the number of total requests has risen sharply in recent months.
Most requests (more than 50 million) were aimed at the site , which for its part says a lot of those were duplicates - so that's almost alright then. You can read the most recent Google Transparency Report .