PERCENT OF ALCOHOL-IMPAIRED DRIVERS INVOLVED IN FATAL CRASHES BY AGE, 2000 AND 2009 (1)
Age 2000 2009 Point change
Under 16 10% 7% -3 pts.
16 to 20 18 19 1
21 to 24 32 35 3
25 to 34 28 32 4
35 to 44 26 26 0
45 to 54 18 22 4
55 to 64 12 13 1
65 to 74 8 7 -1
Over 74 4 3 -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.