Tonne-kilometres measure transport work by combining the weight of cargo with the distance it travels. The figure can therefore rise because more goods were carried, because they travelled farther, or both. It does not measure the cargo’s value, and this slice of the data covers international rather than domestic freight.
The break with recent history is unusually sharp. Annual readings stayed between 3,093 million and 4,052.2 million tonne-kilometres from 2019 through 2023. The total then climbed to 6,963.9 million in 2024 before reaching 15,693.4 million in 2025. Azerbaijan ranked third among the 14 countries compared that year.
For Azerbaijan, which sits on Caspian transit routes linking into rail and road networks, the statistic is a useful gauge of how intensively international freight corridors are being used. Higher transport work can affect planning for vessels, terminals and connecting infrastructure.
The data do not identify what produced the latest increase or separate additional cargo from longer journeys. The defensible conclusion is that measured international waterway transport activity reached a clear record—not that Azerbaijan’s trade, port income or wider economy expanded at the same pace.