A. “Earnings and Employment Data for Workers Covered Under Social Security and Medicare, by State and County, 2010,” (May 2013, .pdf and Excel format, 455p.).
www.ssa.gov/policy/docs/statcomps/eedata_sc/2010/index.html
B. “Congressional Statistics, December 2012,” (May 2013, .pdf and Excel format, 114p.).
www.ssa.gov/policy/docs/factsheets/cong_stats/2012/index.html
