Figure 3,,,,
Percentage of Vehicle Inspections in which ,,,,
the Vehicle is Taken Out of Service: 1984–1999,,,,
,Percent of vehicles  taken out of service,,,
1984,31,,,
1985,29,,,
1986,39,,,
1987,37,,,
1988,38,,,
1989,36,,,
1990,34,,,
1991,32,,,
1992,28,,,
1993,26,,,
1994,24,,,
1995,23,,,
1996,21
1997,20
1998,26
1999,25

"SOURCE: U.S. Department of Transportation, Federal Motor Carrier Safety ",
"Administration, Motor Carrier Inspection Database. ",