Bureau of Transportation Statistics (BTS)
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TABLE 1. Value of U.S. International Merchandise Freight, 2003

$ millions

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Overall and Land Modes Total Exports Imports
Total U.S. trade by all modes (land, sea, air) 1,983,139 723,743 1,259,396
Total U.S. trade by land 562,776 240,486 322,291
Value of International Land Freight via Detroit, MI      
Total land trade through port 101,890 54,549 47,341
Percent of total U.S. land freight value 18.1 22.7 14.7
Value of International Land Freight by Mode via Detroit, MI      
Truck 84,811 48,632 36,179
Rail 16,723 5,680 11,043
Pipeline 92 32 61
Other and unknown 263 205 58
Value of Land Freight O&D, All Modes via Detroit, MI      
To and from Michigan 29,689 10,522 19,167
To and from other U.S. States 72,200 44,026 28,174
Other states' shipments as percent of freight value via port 70.9 80.7 59.5
Value of Truck Freight O&D, via Detroit, MI      
To and from Michigan 23,813 9,004 14,809
To and from other U.S. States 60,998 39,627 21,370
Other states' shipments as percent of freight value via port 71.9 81.5 59.1

KEY: O&D = origin and destination.

SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, based on data from multiple sources, U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, U.S. Exports and Imports of Merchandise, CD-ROM, 2003; and U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight Data, 2003.