Keywords: Average US Federal Tax Rates by Income Group, 1979 to 2010.png en Average US Federal Tax Rates by Income Group from 1979 to 2010 and under 2013 Law 2014-05-29 13 39 53 http //cbo gov/publication/44604 Congressional Budget Office PD-USGov Uploaded with UploadWizard Tax charts Tax in the United States |