Table 23,,,,
U.S. Merchandise Trade with Canada and Mexico by Mode: 2000–2001,,,,
(In percent),,,,
Mode,Value ,,Weight ,
,2000,2001,2000R,2001
Truck, 65.6 , 64.4 , 32.8 , 31.5 
Rail, 14.4 , 15.1 , 16.3 , 17.0 
Pipeline, 3.6 , 4.3 , 13.8 , 13.9 
Air, 6.9 , 6.0 , 0.2 , 0.1 
Water, 5.0 , 4.8 , 36.9 , 37.4 
Other and unknown, 4.5 , 5.4 , 0.1 , 0.2 
"NAFTA trade, total", 100.0 , 100.0 , 100.0 , 100.0 
Truck, 63.5 , 61.7 , 36.4 , 35.3 
Rail, 15.4 , 15.8 , 20.8 , 21.6 
Pipeline, 5.7 , 6.9 , 19.1 , 19.4 
Air, 7.8 , 6.6 , 0.2 , 0.1 
Water, 2.2 , 2.4 , 23.6 , 23.5 ,,,,
Other and unknown, 5.3 , 6.7 , 0.1 , 0.2 ,,,,
"U.S. trade with  Canada, total", 100.0 , 100.0 , 100.0 , 100.0 ,,,,
Truck, 69.1 , 68.9 , 24.7 , 23.3 ,,,,
Rail, 12.7 , 13.9 , 6.1 , 6.9 ,,,,
Pipeline, 0.1 , 0.1 , 2.0 , 1.8 ,,,,
Air, 5.4 , 5.2 , 0.1 , 0.1 ,,,,
Water, 9.5 , 8.6 , 67.0 , 67.7 ,,,,
Other and unknown, 3.1 , 3.2 , 0.2 , 0.2 ,,,,
"U.S. trade with  Mexico, total", 100.0 , 100.0 , 100.0 , 100.0 ,,,,
Key: R = revised.,,,,,,,,
"NOTE: Due to data revisions, 2000 modal shares for overall NAFTA trade differ from previously published data.",,,,,,,,
"SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, special tabulation, May 2002; based on total trade, air and water data—U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, FT920 U.S. Merchandise Trade 2000 to 2001 (Washington, DC: 2000–2001); and all land modes—U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight Data, as of January 2002.",,,,,,,,
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