Yes. Since you brought it up I can provide those numbers too:<p><pre><code>  Total US population ~= 319M
  Under 18 population ~=  73M
  Over 65 population  ~=  46M
  ---------------------------
  Remainder           ~= 200M
</code></pre>
No data on volunteering not to receive, though I don&#x27;t know many people who pay more taxes than they&#x27;re required to so I&#x27;m guessing that number would be pretty small.