| Cars | Light trucks | All trucks | |
|---|---|---|---|
| 1995 | 7.7 | 7.4 | 7.6 |
| 1996 | 7.9 | 7.5 | 7.7 |
| 1997 | 8.1 | 7.3 | 7.8 |
| 1998 | 8.3 | 7.1 | 7.6 |
| 1999 | 8.3 | 6.9 | 7.2 |
| 2000 | 8.3 | 6.7 | 6.9 |
| 2001 | 8.3 | 6.1 | 6.8 |
| 2002 | 8.4 | 6.6 | 6.8 |
| 2003 | 8.6 | 6.5 | 6.7 |
| 2004 | 8.9 | 6.4 | 6.6 |
| 2005 | 9.0 | 6.6 | 6.8 |
| 2006 | 9.2 | 6.8 | 6.9 |
| 2007 | 9.2 | 7.1 | 7.3 |
NOTES: Light Trucks are 14,000 lbs and under (gross vehicle weight classes 1-3). Median age is as of July 1st of each year.
SOURCE: The R.L. Polk Co., available at http://usa.polk.com/News/LatestNews/ as of August 2008 as reported in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 1-25, available at http://www.bts.gov/publications/national_transportation_statistics/.