Table 22 U.S. Merchandise Trade with Canada and Mexico by Mode: 2001

Table 22 U.S. Merchandise Trade with Canada and Mexico by Mode: 2001

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Mode Value (percent) Weight (percent)
NAFTA trade, totala 100.0 100.0
Truck 64.4 31.5
Rail 15.1 17.0
Pipeline 4.3 13.9
Air 6.0 0.1
Water 4.8 37.4
Other and unknown 5.4 0.2
U.S. NAFTA imports, total 100.0 100.0
Truck 58.4 22.9
Rail 19.9 18.8
Pipeline 7.4 18.9
Air 4.3 <0.05
Water 5.9 39.3
Other and unknown 4.0 0.1
U.S. NAFTA exports, totala 100.0 100.0
Truck 72.4 51.3
Rail 8.8 12.9
Pipeline 0.2 2.3
Air 8.2 0.2
Water 3.3 33.0
Other and unknown 7.1 0.3

a BTS estimated the export weight for truck, rail, pipeline, and other and unknown based on value-to-weight ratios from the import data. This was necessary, because export weights for surface modes are not currently reported. Weight for water and air exports and imports are from U.S. Department of Commerce, U.S. Census Bureau.

Note: Value based on millions of U.S. dollars; weight based on millions of short tons.

Sources: Compiled by USDOT, Bureau of Transportation Statistics (BTS), May 2002. Water and air data-U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, U.S. Exports of Merchandise, CD-ROM and U.S. Imports of Merchandise, CD-ROM, December 2001. Total, truck, rail, pipeline, other and unknown data-USDOT, BTS, Transborder Surface Freight Data 2002; and special calculation, May 2002.