A. SSI Monthly Statistics, January 2013 (February 2013, HTML and .pdf format).
www.ssa.gov/policy/docs/statcomps/ssi_monthly/2013-01/index.html
B. Monthly Statistical Snapshot, January 2013 (February 2013, HTML and .pdf format, 3p. ).
www.ssa.gov/policy/docs/quickfacts/stat_snapshot/2013-01.html
