Table 6-2: Transportation and Warehousing Establishments and Employment in the United States: 1999,,, Business type,Establishments1 (number),Number of employees,Annual payroll ($ thousands) Total transportation and warehousing,"187,339","3,627,057","116,682,214" Air transportation,"5,285","582,838","24,414,357" Water transportation,"1,950","71,844","3,039,510" Truck transportation,"108,749","1,384,178","43,626,168" Transit and ground passenger transportation,"16,254","370,022","6,729,332" Pipeline transportation,"2,550","48,149","3,032,689" Scenic and sightseeing transportation,"2,267","22,877","540,702" Support activities for transportation,"31,392","440,175","14,915,625" Couriers and messengers,"11,938","578,368","16,725,960" Warehousing and storage,"6,954","128,606","3,657,871" "1 The transportation and warehousing sector (North American Industrial Classification System [NAICS] 48 and 49) includes industries providing transportation of passengers and cargo, warehousing and storage for goods, scenic and sightseeing transportation,",,, "SOURCE FOR DATA ON THIS PAGE: U.S. Department of Commerce, U.S. Census Bureau, 1999 County Business Patterns, Washington, DC: May 2001, available at http://www.census.gov/epcd/cbp/ map/99data/06/999.txt as of Oct. 25, 2001.",,,