Table 5-3a,,, Top Canadian Domestic Freight Commodities,,, by Mode: 1996,,, (Millions of metric tons),,, ,,, Mode of transportation ,Total,Mode of transportation ,Total ,,, Air,, Road, N ,N, Forest products ,40.3 ,, Live animals and food products ,24.0 Pipeline,, Petroleum products ,23.1 Natural gas ,120.1, Construction materials ,18.4 Crude oil ,118.9, Steel ,14.4 Petroleum products ,64.5, Water transport, ,, Iron ore ,7.0 Rail,, Pulpwood and chips ,6.7 Bituminous coal ,39.8, Wheat ,4.8 Iron ore and concentrates ,37.4, Stone and limestone ,4.7 Wheat ,20.3, Fuel oil ,4.3 Muriate of potassium (potash) ,12.3, Intermodal, Pulpwood and chips ,11.7, N ,N ,,, KEY: N = Data are nonexistent.,,, SOURCES,,, "Pipeline: Statistics Canada. Oil Pipeline Transport, Catalogue No. 55-201-XPB, 1996. (Ottawa, Ont.: 1997). Statistics Canada. Gas",,, "Utilities, Transport and Distribution Systems, Catalogue No. 57-205-XPB, 1996. (Ottawa, Ont.: 1997).",,, "Rail: Statistics Canada. Rail in Canada, Catalogue No. 52-216-XPB, 1996. (Ottawa, Ont.: 1998).",,, "Road: Statistics Canada. Transportation Division. Special for-hire trucking tabulations for Transport Canada. (Ottawa, Ont.: 1998).",,, "Water transport: Transport Canada. Economic Analysis Directorate. (Ottawa, Ont.: 1998). (Tabulations derived from Statistics Canada’s",,, Marine Database.),,,