PERCENT OF ALCOHOL-IMPAIRED DRIVERS INVOLVED IN FATAL CRASHES BY AGE, 2001 AND 2010 (1)
Age   2001 2010 Point change  
Under 16   12% 8% -4 pts.
16 to 20   18 18 0
21 to 24   33 34 1
25 to 34   28 30 2
35 to 44   25 25 0
45 to 54   19 21 2
55 to 64   12 14 2
65 to 74   7 8 1
Over 74   4 5 1

(1) Alcohol-impaired driving crashes are crashes that involve at least one driver or a motorcycle operator with a blood alcohol concentration (BAC) of 0.08 percent or above, the legal definition of drunk driving.

Source: U.S. Department of Transportation, National Highway Traffic Safety Administration.