Terms used in official statistics

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Deadweight tonnage (DWT)

The weight of cargo and supplies in tons (1000 kg) at the draught to the summer load line loaded, in salt water. The difference in tons between the displacement of ship on summer load-line in water with a specific gravity of 1.025 and the total weight of ship, i.e. displacement in tons without fuel, lubricating oil, ballast, fresh and potable water in the tanks, equipment as well as passengers, crew and their belongings.

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Urząd Statystyczny w Szczecinie