Persons 18+ historical universe estimates chart
| Season | Share | Population | Change |
|---|
| 2016-2017 | 78.8% | 237,840,000 | +1.83% |
| 2015-2016 | 78.7% | 233,560,000 | +0.53% |
| 2014-2015 | 78.5% | 232,330,000 | +0.75% |
| 2013-2014 | 78.3% | 230,600,000 | +2.13% |
| 2012-2013 | 78.0% | 225,790,000 | +0.58% |
| 2011-2012 | 77.5% | 224,480,000 | -1.76% |
| 2010-2011 | 77.6% | 228,510,000 | +0.99% |
| 2009-2010 | 77.5% | 226,280,000 | +0.80% |
| 2008-2009 | 77.4% | 224,480,000 | +1.43% |
| 2007-2008 | 77.3% | 221,310,000 | +1.22% |
| 2006-2007 | 77.1% | 218,650,000 | +1.31% |
| 2005-2006 | 76.9% | 215,830,000 | +0.98% |
| 2004-2005 | 76.9% | 213,730,000 | +1.10% |
| 2003-2004 | 76.7% | 211,400,000 | +2.02% |
| 2002-2003 | 76.2% | 207,210,000 | +0.77% |
| 2001-2002 | 76.2% | 205,630,000 | +3.19% |
| 2000-2001 | 76.1% | 199,270,000 | |