TABLE 21  Average Capacity of Vessels Calling at U.S. Ports: 1998–2001,,,,
(Deadweight tons),,,,
,,,,
,1998,1999,2000,2001
Tanker,"78,534","78,027","78,782","79,004"
Dry bulk,"40,930","41,211","41,031","41,072"
Containership,"35,671","36,580","37,814","38,922"
Ro-Ro,"19,848","18,734","18,402","19,104"
Chemical tankers,"27,303","27,499","27,750","27,544"
Gas carriers,"30,435","30,973","31,339","33,898"
Other,"29,364","32,151","33,790","33,895"
Total,"44,519","44,951","45,467","46,238"
"
KEY: Ro-Ro = Roll-On, Roll-Off vessels, which are especially designed to carry wheeled containers trailers or other wheeled cargo, use the roll-on/roll-off method for loading and unloading. ",,,,
"
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, calculation based on U.S. Department of Transportation, Maritime Administration, Vessel Calls at U.S. Ports (Washington, DC: Annual issues), tables H-6 and H-8.",,,,