|Number registered (thousands)||3,681||4,232||4,374||4,593||4,487||4,481||4,370||4,408||4,906||5,024||R5,266||5,293||5,735||5,763||5,926|
|Fuel consumed (million liters)||15,021||20,517||26,206||28,008||31,635||30,934||31,180||32,131||34,190||34,886||R35,613||36,249||25,805||35,477||36,143|
|Average kilometers traveled per vehicle (thousands)||11.8||13.2||14.6||15.9||18.6||19.0||19.8||20.7||20.1||20.1||19.6||20.3||19.2||19.6||19.2|
|Average kilometers traveled per liter||2.9||2.7||2.4||2.6||2.6||2.8||2.8||2.8||2.9||2.9||2.9||3.0||4.3||3.2||3.1|
|Average fuel consumed per vehicle (liters)||4,080||4,848||5,992||6,098||7,050||6,904||7,135||7,289||6,968||6,944||R6,765||6,848||4,501||6,155||6,098|
KEY: R = revised.
a Beginning in 1998, the Federal Highway Administration (FHWA) used the Census Bureau's 1997 Vehicle Inventory and Use Survey (VIUS) for its baseline estimate of single-unit 2-axle 6-tire or more trucks. Prior to 1998, the FHWA used the Census Bureau's 1992 Transportation Inventory and Use Survey (TIUS) for its baseline estimates. Therefore, post-1997 data may not be comparable to 1997 and earlier years.
NOTES: In 1995, the U.S. Department of Transportation, Federal Highway Administration revised its vehicle categories beginning with 1993 data to include passenger cars, other 2-axle 4-tire vehicles, single-unit 2-axle 6-tire or more trucks, and combination trucks. Single-unit 2-axle 6-tire or more trucks are on a single frame with at least 2 axles and 6 tires. Pre-1993 data have been reassigned to the most appropriate category.
Numbers may differ slightly from previous year's metric tables because a higher precision conversion factor was used.
SOURCES: 1965-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.
1995-2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.