Table 1-41M U.S. Tonne-Kilometers of Freight (Millions),,,,,,,,,,,,,,,,,
,1960,1965,1970,1975,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,,
"Air carrier, domestic, all servicesa",807,"1,975","3,955","5,066","6,611","7,528","13,233","12,935","14,337","15,585","17,232","18,279","18,777","19,857","20,083",,
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Intercity truck,"R416,093","R524,131","R601,510","R662,829","R810,286","R890,585","R1,073,082","1,106,661","1,189,880","1,257,038","1,325,657","R1,344,637","R1,419,096","R1,454,135","1,499,394",,
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Class I railb,"R835,557","R1,018,884","R1,116,602","R1,101,189","R1,341,656","R1,280,375","R1,509,569","1,516,732","1,557,474","1,619,563","1,752,993","R1,906,272","R1,979,690","R1,969,398","2,010,096",,
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Domestic water transportation,,,,,,,,,,,,,,,,,
Coastwise,U,"R441,709","R525,276","R461,127","d,R921,462","R892,010","R699,523","733,102","733,361","654,659","668,086","R642,893","R595,795","R510,762","459,694",,
Lakewise,U,"110,838","115,946","100,033","90,149","70,347","88,956","80,794","81,444","82,398","85,063","87,166","R85,168","90,761","90,013",,
Internal,U,"160,161","227,487","263,378","R331,915","R339,748","426,886","423,333","434,545","414,478","434,726","R447,233","433,307","R429,266","430,541",,
Intraport,U,"2,392","1,721","1,785","2,331","1,609","1,587","1,413","1,387","1,346","1,887","1,971","2,153","2,012","2,016",,
   Total domestic water transportationc,U,"715,100","870,430","826,322","1,345,856","1,303,714","1,216,953","1,238,641","1,250,739","1,152,881","1,189,761","1,179,263","1,116,424","1,032,801","982,264",,
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Oil pipeline,"334,334","446,752","R629,249","R740,207","R858,757","R823,864","R852,771","844,596","859,633","865,619","863,429","R877,591","R904,017","R900,075","904,892",,
TOTAL,"R2,280,481","R2,706,794","R3,222,165","R3,336,043","R4,363,865","R4,305,466","R4,666,080","4,720,099","4,871,936","4,911,356","R5,149,332","R5,325,989","R5,438,407","R5,375,628","5,416,507",,
"a Includes freight, express, and mail revenue tonne-kilometers as reported on U.S. DOT Form 41. ",,,,,,,,,,,,,,,,,
b Revenue tonne-kilometers.,,,,,,,,,,,,,,,,,
"c Excludes intraterritorial traffic, for which tonne-kilometers were not compiled.",,,,,,,,,,,,,,,,,
d Reflects startup between 1975 and 1980 of Alaska pipeline and consequent water transportation of crude petroleum from,,,,,,,,,,,,,,,,,
Alaskan ports to mainland United States for refining.,,,,,,,,,,,,,,,,,
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KEY: R = revised; U = data are not available.,,,,,,,,,,,,,,,,,
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NOTE: Domestic water transportation numbers may not add to totals due to rounding.,,,,,,,,,,,,,,,,,
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SOURCES:  ,,,,,,,,,,,,,,,,,
"Air carrier, domestic, all services:",,,,,,,,,,,,,,,,,
"1960-65: Civil Aeronautics Board, Handbook of Airline Statistics, 1969 (Washington, DC: 1970).",,,,,,,,,,,,,,,,,
"1970-80: Ibid., Air Carrier Traffic Statistics (Washington, DC: Annual issues), p. 2, line 3.",,,,,,,,,,,,,,,,,
"1985-98: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics (Washington, DC: Annual issues), p. 2, line 3.",,,,,,,,,,,,,,,,,
Intercity truck:,,,,,,,,,,,,,,
"1960-98: Eno Transportation Foundation, Inc., Transportation in America, 1998 (Washington, DC: 1999), p. 44.",,,,,,,,,,,,,,
Class I rail:,,,,,,,,,,,,,,
"1960-98: Association of American Railroads, Railroad Facts 1998 (Washington, DC: 1999), p. 27.",,,,,,,,,,,,,,
Domestic water transportion:,,,,,,,,,,,,,,
"1965-98: U.S. Army Corps of Engineers, Waterborne Commerce of the U.S. (New Orleans, LA: Annual issues), part 5, section 1, table 1-4, and similar tables in earlier editions.",,,,,,,,,,,,,,
Oil pipeline:,,,,,,,,,,,,,,
"1960-70: Eno Transportation Foundation, Inc., Transportation in America, 1998 (Washington, DC: 1998), p. 44.",,,,,,,,,,,,,,
"1975:  Association of Oil Pipe Lines, Shifts in Petroleum Transportation (Washington, DC: Annual issues), table 4.",,,,,,,,,,,,,,
"1980-98:  Ibid., Shifts in Petroleum Transportation (Washington, DC: Annual issues), table 1.",,,,,,,,,,,,,,
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