Persons 18-24 historical universe estimates chart
| Season | Share | Population | Change |
|---|
| 2018-2019 | 9.42% | 28,760,000 | -0.79% |
| 2017-2018 | 9.52% | 28,990,000 | +0.24% |
| 2015-2016 | 9.74% | 28,920,000 | +0.31% |
| 2014-2015 | 9.74% | 28,830,000 | -1.17% |
| 2012-2013 | 10.1% | 29,170,000 | +1.32% |
| 2008-2009 | 9.93% | 28,790,000 | +1.12% |
| 2007-2008 | 9.94% | 28,470,000 | -0.04% |
| 2006-2007 | 10.1% | 28,480,000 | +2.04% |
| 2005-2006 | 9.95% | 27,910,000 | |