The total number of users about whom government agencies wanted information also set a record at 31,072, up from 23,300 in 2011, the first year Google began reporting the data. The discrepancy comes because government agencies request information on multiple users or accounts at the same time.

Most of these 13,753 requests, 6,542 of 8,438 in the latter half of 2012 alone, were done without a search warrant, Google data show. Google did not make available any detailed data prior to June 2012, nor did it make available which requests came from the federal government and which came from state or local law enforcement agencies, when asked by CNSNews.com.