|Mode||Imports Current U.S. ($ millions)||Imports Percent||Exports Current U.S. ($ millions)||Exports Percent||Total trade||Percentage of total|
|Total, all modes||1,024,766||100||692,821||100||1,717,587||100|
|Other and unknown||48,184||4.7||66,173||9.6||114,356||6.7|
NOTES: Water: Excludes in-transit data (merchandise shipped from one foreign country to another via a U.S. water port).Imports: Excludes imports valued at less than $1,250. Import value is based on U.S. general imports, customs value basis.Exports: Excludes exports valued at less than $2,500. Export value is f.a.s. (free alongside ship) and represents the value of exports at the port of export, including the transaction price and inland freight, insurance, and other charges.
SOURCES: Compiled by U.S. Department of Transportation, Bureau of Transportation Statistics, November 2000. Total, water, and air data: U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, U.S. Exports of Merchandise CD and U.S. Imports of Merchandise CD, December 1999.Truck, rail, pipeline, and other and unknown data: U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight Data, 1999, and special tabulations.