"US Table 2. Shipments by Total Modal Activity."
"Mode of Transport","Ton-miles(mil)","Ton-miles %","Avg. miles"
"      All modes                     ",2661363,100.0,465
"Truck                               ",1029162,38.7,142
"Rail                                ",1115158,41.9,887
"  Shallow draft                     ",226975,8.5,253
"  Great Lakes                       ",38290,1.4,386
"  Deep draft                        ",84100,3.2,1329
"Air                                 ",5907,.2,1300
"Parcel, US Postal Service or courier",17994,.7,813
"Pipeline                            ",S,S,S
"  Other and unknown modes           ",74337,2.8,121