The total number of user-data requests Facebook received from any and all government entities in the U.S. (including local, state, and federal, and including criminal and national security-related requests) in the past six months was between 9,000 and 10,000. This means that a tiny fraction of one percent of Facebooks 1.1 billion monthly active users worldwide were the subject of any kind of government request. Facebook General Counsel Ted Ullyot: “We will continue to be vigilant in protecting our users data from unwarranted government requests””]
Source: https://about.fb.com/news/2013/06/facebook-releases-data-including-all-national-security-requests/