Table 3. Ton-Miles of U.S. Freight Shipments by Mode of Transportation: 2002,,
(Commodity Flow Survey Data ),,
Mode,Ton-miles (million),Ton-miles (% of total) 
All modes,"3,137,898",100.0
Truck,"1,255,908",40.0
For-hire truck,"959,610",30.6
Private truck,"291,114",9.3
Rail,"1,261,612",40.2
Water,"282,659",9.0
Air (incl. truck and air),"5,835",0.2
Pipeline,S,S
Multiple modes,"225,715",7.2
"Parcel, U.S.P.S. or courier","19,004",0.6
Other multiple modal combinations,"206,711",6.6
Other and unknown modes...,"44,245",1.4
"SOURCE:  U.S. Department of Transportation, Bureau of Transportation Statistics, Commodity Flow Survey 2002, December 2004.",,