Forty-Year Tonnage of Commodities on U.S. Commercial Waterways

Forty years of data records the total, foreign, and domestic tonnage of commodities transported on U.S. commercial waterways. The dataset provides tonnage figures in short tons, compiled by the Department of Defense. The specific row and column counts are not provided in the input.

Use Cases

• Analyze long-term trends in total tonnage to assess the growth of waterborne commerce over four decades.
• Compare foreign tonnage against domestic tonnage to study shifts in international versus domestic trade flows.
• Model the relationship between commodity types and total tonnage using the provided tonnage categories.

Strengths

• Covers a forty-year time span, enabling longitudinal analysis of waterborne commerce.
• Includes distinct metrics for total, foreign, and domestic tonnage, allowing for segmented trade analysis.
• Sourced from the authoritative Department of Defense, lending credibility to the data.

Limitations

• The dataset's specific temporal endpoints and geographic scope within the U.S. are not detailed.
• The absence of column definitions and sample data limits understanding of the data structure and available features.
• The last update was in February 2021, so recent years may not be included.

Provenance

Source

Department of Defense

Collection Method

null

Time Range

Forty years (specific start and end years unknown)

Freshness

Last updated on 2021-02-24; update frequency is unknown.

Geography

United States commercial waterways (inferred from description and source)