U.S. Census Bureau; Library of Congress; National Archives and Records Administration;
National Institutes of Health; American Presidency Project, University of California at Santa Barbara
2010 American Community Survey, † 2007 Economic Census (Survey of Business Owners)
The American Community Survey is a survey and its estimates are subject to sampling error.
US Census Bureau, 2011 Annual Survey of Public Employment & Payroll.
Data collected for the month of March 2011.
For more information visit http://www.census.gov/govs/apes/.
For more information on American Community Survey sampling and estimation methods, visit: http://www.census.gov/acs/www/Downloads/data_documentation/Accuracy/ACS_Accuracy_of_Data_2011.pdf.
For more information about how data on veterans are collected and the definition of veteran status in the ACS, visit: http://www.census.gov/hhes/veterans/about/definitions.html
For more information on sampling and nonsampling error, visit: http://www.census.gov/sipp/sourceac/S&A08_W1toW11%28S&A-16%29.pdf
For more information on child care, visit: http://www.census.gov/hhes/childcare/index.html
1997, 2002, 2007, and 2012 Economic Census