|Commodity||Short tons||Percent of total|
|Coal, lignite, and coal coke||37,245,222||39.5|
|Food and food products||35,351,158||37.5|
|Sand, gravel, shells, clay, salt, and slag||8,219,706||8.7|
|Chemicals excluding fertilizers||1,134,497||1.2|
|Iron ore, iron, and steel waste and scrap||552,455||0.6|
|Primary nonmetal products||421,573||0.4|
|Primary metal products||119,301||0.1|
|Unknown and not elsewhere classified products2||4,683,686||5.0|
1 "Domestic" includes intrastate shipments.
2 To protect confidentiality, if three or more vessel operating companies do not carry a particular commodity from a state of origin to a state of destination, then that commodity is reclassified to "unknown and not elsewhere classified products."
SOURCE FOR DATA ON THIS PAGE: U.S. Army Corps of Engineers, Waterborne Commerce Statistics Center, State to State and Region to Region Commodity Tonnages, Public Domain database, available at http://www.wrsc.usace.army.mil/ndc/datapdom.htm as of Oct. 30, 2001.