http://apnews.myway.com/article/20080519/D90OVDN80.html

"Sixty-eight percent of drivers and passengers between the ages of 16 and 20 who were killed in car crashes at night in 2006 were unbuckled, said the National Highway Traffic Safety Administration. During daytime, 57 percent of the young motorists and passengers who were killed were not wearing seat belts.

That portion of the study focused on 2006 data and did not evaluate other years.

The problem isn't just with teens. The percentage of unbuckled drivers and passengers is well up in the 60s through the age of 44. It declines to 52 percent for people 55-64 and 41 percent for those older than that . . . "