Population of the USA by age and sex (demographic pyramid) as of 01 July 2014. Data is from US Census Bureau: <a rel="nofollow" class="external text" href="https://www.census.gov/population/projections/files/filelayout/NP2014_D1.pdf">File layout</a><a rel="nofollow" class="external text" href="https://www.census.gov/population/projections/files/downloadables/NP2014_D1.csv">Data</a>
<a href="//commons.wikimedia.org/wiki/User:Delphi234" title="User:Delphi234">Delphi234</a>
2014-09-25
<span class="int-own-work" lang="en">Own work</span>