"TABLE 4. Value of International Land Trade via Port Huron, MI by Mode: 1999-2003",,,,,,,, ($ millions),,,,,,,, " ",1999,2000,2001,2002,2003,,, Truck," 30,219 "," 32,770 "," 29,955 "," 32,876 "," 35,720 ",,, Rail," 18,584 "," 24,645 "," 22,914 "," 22,376 "," 22,889 ",,, Pipeline, 969 ," 2,280 "," 2,764 "," 2,102 "," 3,637 ",,, Other and unknown, 5 , 8 , 14 , 16 , 48 ,,, Total," 49,777 "," 59,704 "," 55,648 "," 57,370 "," 62,294 ",,, " SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight Data, 1999-2003. ",,,,,,,,