SOURCES: Carmen DeNavas-Walt, Benadette D. Proctor, and Jessica C. Smith, Income, Poverty, and Health Insurance Coverage in the United States: 2012, Current Population Reports: Consumer Income, U.S. Census Bureau, September 2012; U.S. Census Bureau, “Educational Attainment” online tables, 2013; U.S. Bureau of Labor Statistics, “Labor Force Statistics from the Current Population Survey” online tables, 2013.