5-4,,,,
Employment in Transportation and Selected Transportation-Related Industriesa : 1990-2006,,,,
(Thousands),,,,
,1990,2000,2005,2006
Total U.S. labor force (Nonfarm),"109,487 ","131,785 ","R133,703","136,174 "
Total transportation related labor forceb,"12,086","R13,678","13,109 ","13,198 "
Transportation as a percent of U.S. total,11,10,10,10
For-hire transport & warehousing,"3,476","4,410","R4,361","4,466 "
Air,529,614,501 ,487 
Water,57,56,61 ,64 
Railroad,272,232,228 ,225 
Transit/ground passenger transportation ,274,372,389 ,394 
Pipeline,60,46,38 ,39 
Trucking,"1,122","1,406","R1,398","1,437 "
Support activities,364,537,R552,571 
Scenic/sightseeing transportation,16,28,R29,27 
Couriers/messengers,375,605,R571,585 
Warehousing/storage,407,514,R595,636 
Related services & construction,"5,256","6,177","6,011 ","6,007 "
Automotive repair services/parking; automotive equipment rental/leasing; gasoline stations ,"1,800","2,125","R2,059","2,053 "
"Highway, street, bridge construction ",289,340,R351,349 
"Dealers or wholesalers of motor vehicles, parts, petroleum, supplies, equipment","1,993","R2,361","2,396 ","2,392 "
Travel arrangement/reservation services,250,299,224 ,227 
Ambulatory health care services,99,173,R206,216 
Postal service,825,880,774 ,770 
Transportation-related manufacturingc,"2,681","2,446","R2,135","2,127 "
Governmentb,673,646,602 ,599 
a Annual averages. Data are NAICS-based. (See Glossary for definition.)  ,,,,
b Fiscal year data. Includes U.S. DOT and state and local highway personnel.   ,,,,
"c Includes transportation equipment; petroleum products; tires; rubber; plastics; search, detection, navigation, guidance, aeronautical, and nautical systems; and instrument manufacturing.",,,,
Key: R = revised.,,,,
"Source:  Various sources as cited in USDOT, RITA, BTS, National Transportation Statistics, table 3-19b, available at http://www.bts.gov as of September 2007.",,,,