Water Transport Profile
KEY: N = data do not exist; R = revised; U = data are not available.
a The international water freight operating revenues data was revised in Transportation in America 1998 for all years except 1994 and 1996. Therefore, the international water freight data for years 1994 and 1996 may not be comparable to other years.
b Revenues paid by American travelers to U.S. and foreign flag carriers.
c Data is based on NAICS classifications. Data for water transportation in 2002 includes NAICS categories 483100, 483200, 488300....