Facebook has released the numbers of requests it received for user account information during the first half of 2013.

The United States sought data from between 20,000 – 21,000 accounts. Facebook said the data included “criminal and national security requests to the maximum extent permitted by law.” It said it was prohibited from detailing exact numbers or types of national security related requests, which would include National Security Letters and FISA court orders.

...The data, the social-networking giant said, concern basic subscriber information, such as name and length of service. “Other requests may also seek IP address logs or actual account content,” Facebook said.

Facebook's report is here. Take a look at FB's Data Privacy page and see how much information it stores about you. You need to check three places, the Activities Log, Expanded Archives and Downloaded Info and Activity Logs.

To save you some time, I combined them in this slideshow. The complete data use policy is here. For more on what information Facebook, Twitter and other social media companies store, see here. For stored metadata, see here.