U.S. Naturalizations: 2011
http://www.dhs.gov/xlibrary/assets/statistics/publications/natz_fr_2011.pdf
Presents information on the number and characteristics of foreign nationals aged 18 years and over who were naturalized during 2011. The total was 694,193 and the leading countries were Mexico, India, the Philippines, and China. From the Office of Immigration Statistics of the Department of Homeland Security
