s have been
made using PPP. 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 correct 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 may volunteer
for military service or be subject to conscription.

Military manpower - reaching military age annually
This entry gives the number of draft-age males and females entering the
military manpower pool in any given year and is a measure of the
availability of draft-age young adults.

Military - note
This entry includes miscellaneous military information of significance
not included elsewhere.

Money figures
All money figures are expressed in contemporaneous US dollars unless
otherwise indicated.

National holiday
This entry gives the primary national day of celebration - usually
independence day.

Nationality
This entry provides the identifying terms for citizens - noun and
adjective.

Natural hazards
This entry lists potential natural disasters.

Natural resources
This entry lists a country's mineral, petroleum, hydropower, and other
resources of commercial importance.

Net migration rate
This entry includes the figure for the difference between the number of
persons entering and leaving a country during the year per 1,000
persons (based on midyear population). An excess of persons entering
the country is referred to as net immigration (e.g., 3.56
migrants/1,000 population); an excess of persons leaving the country as
net emigration (e.g., -9.26 migrants/1,000 population). The net
migration rate indicates the contribution of migration to the overall
level of population change. High levels of migration can c