or
gross register tonnage is a figure obtained by measuring the entire
sheltered volume of a ship available for cargo and passengers and
converting it to tons on the basis of 100 cubic feet per ton; there is
no stable relationship between GRT and DWT.
Ships by type includes a listing of barge carriers, bulk cargo
ships, cargo ships, chemical tankers, combination bulk carriers,
combination ore/oil carriers, container ships, liquefied gas tankers,
livestock carriers, multifunctional large-load carriers, petroleum
tankers, passenger ships, passenger/cargo ships, railcar carriers,
refrigerated cargo ships, roll-on/roll-off cargo ships, short-sea
passenger ships, specialized tankers, and vehicle carriers.
Foreign-owned are ships that fly the flag of one country but
belong to owners in another.
Registered in other countries are ships that belong to owners
in one country but fly the flag of another.

Military
This category includes the entries dealing with a country's military
structure, manpower, and expenditures.

Military branches
This entry lists the names of the ground, naval, air, marine, and other
defense or security forces.

Military expenditures - dollar figure
This entry gives current military expenditures in US dollars; the
figure is calculated by multiplying the estimated defense spending in
percentage terms by the gross domestic product (GDP) calculated on an
exchange rate basis, not purchasing power parity (PPP) terms. Dollar
figures for military expenditures should be treated with caution
because of different price patterns and accounting methods among
nations, as well as wide variations in the strength of their
currencies.

Military expenditures - percent of GDP
This entry gives current military expenditures as an estimated percent
of gross domestic product (GDP).

Military manpower - availability
This entry gives the total numbers of males and females age 15-49 and
assumes that every individual is fit to serve.

Military manpower - fit for military service
This entry gives the number of males and females age 15-49 fit for
military service. This is a more refined measure of potential military
manpower availability which tries to account for the health situation
in the country and reduces the maximum potential number to a more
realistic estimate of the actual number fit to serve.

Military manpower - military age
This entry gives the minimum age at which an individual m