Internet users: This entry gives the number of users within a country

that access the Internet. Statistics vary from country to country and

may include users who access the Internet at least several times a week

to those who access it only once within a period of several months.

Introduction: This category includes one entry, Background.

Investment (gross fixed): This entry records total business spending

on fixed assets, such as factories, machinery, equipment, dwellings,

and inventories of raw materials, which provide the basis for future

production. It is measured gross of the depreciation of the assets,

i.e., it includes investment that merely replaces worn-out or scrapped

capital.

Irrigated land: This entry gives the number of square kilometers of

land area that is artificially supplied with water.

Judicial branch: This entry contains the name(s) of the highest

court(s) and a brief description of the selection process for members.

Labor force: This entry contains the total labor force figure.

Labor force - by occupation: This entry lists the percentage

distribution of the labor force by occupation. The distribution will

total less than 100 percent if the data are incomplete.

Land boundaries: This entry contains the total length of all land

boundaries and the individual lengths for each of the contiguous border

countries. When available, official lengths published by national

statistical agencies are used. Because surveying methods may differ,

country border lengths reported by contiguous countries may differ.

Land use: This entry contains the percentage shares of total land area

for three different types of land use: arable land - land cultivated

for crops like wheat, maize, and rice that are replanted after each

harvest; permanent crops - land cultivated for crops like citrus,

coffee, and rubber that are not replanted after each harvest; includes

land under flowering shrubs, fruit trees, nut trees, and vines, but

excludes land under trees grown for wood or timber; other - any land

not arable or under permanent crops; includes permanent meadows and

pastures, forests and woodlands, built-on areas, roads, barren land,

etc.

Languages: This entry provides a rank ordering of languages starting

with the largest and sometimes includes the percent of total population

speaking that language.

Legal system: This entry contains a brief description of the legal

system's historical roots, role in government, and acceptance of

International Court of Justice (ICJ) jurisdiction.

Legislative branch: This entry contains information on the structure

(unicameral, bicameral, tricameral), formal name, number of seats, and

term of office. Elections includes the nature of election process or

accession to power, date of the last election, and date of the next

election. Election results includes the percent of vote and/or number

of seats held by each party in the last election.

Life expectancy at birth: This entry contains the average number of

years to be lived by a group of people born in the same year, if

mortality at each age remains constant in the future. The entry

includes total population as well as the male and female components.

Life expectancy at birth is also a measure of overall quality of life

in a country and summarizes the mortality at all ages. It can also be

thought of as indicating the potential return on investment in human

capital and is necessary for the calculation of various actuarial

measures.

Literacy: This entry includes a definition of literacy and Census

Bureau percentages for the total population, males, and females. There

are no universal definitions and standards of literacy. Unless

otherwise specified, all rates are based on the most common definition

- the ability to read and write at a specified age. Detailing the

standards that individual countries use to assess the ability to read

and write is beyond the scope of the Factbook. Information on literacy,

while not a perfect measure of educational results, is probably the

most easily available and valid for international comparisons. Low

levels of literacy, and education in general, can impede the economic

development of a country in the current rapidly changing, technology-

driven world.

Location: This entry identifies the country's regional location,

neighboring countries, and adjacent bodies of water.

Major infectious diseases: This entry lists major infectious diseases

likely to be encountered in countries where the risk of such diseases

is assessed to be very high as compared to the United States. These

infectious diseases represent risks to US government personnel

traveling to the specified country for a period of less than three

years. The degree of risk is assessed by considering the foreign nature

of these infectious diseases, their severity, and the probability of

being affected by the diseases present. The diseases listed do not

necessarily represent the total disease burden experienced by the local

population.

The risk to an individual traveler varies considerably by the specific

location, visit duration, type of activities, type of accommodations,

time of year, and other factors. Consultation with a travel medicine

physician is needed to evaluate individual risk and recommend

appropriate preventive measures such as vaccines.

Diseases are organized into the following six exposure categories shown

in italics and listed in typical descending order of risk. Note: The

sequence of exposure categories listed in individual country entries

may vary according to local conditions.

food or waterborne diseases acquired through eating or drinking on the

local economy:

Hepatitis A - viral disease that interferes with the functioning of the

liver; spread through consumption of food or water contaminated with

fecal matter, principally in areas of poor sanitation; victims exhibit

fever, jaundice, and diarrhea; 15% of victims will experience prolonged

symptoms over 6-9 months; vaccine available.

Hepatitis E - water-borne viral disease that interferes with the

functioning of the liver; most commonly spread through fecal

contamination of drinking water; victims exhibit jaundice, fatigue,

abdominal pain, and dark colored urine.

Typhoid fever - bacterial disease spread through contact with food or

water contaminated by fecal matter or sewage; victims exhibit sustained

high fevers; left untreated, mortality rates can reach 20%.

vectorborne diseases acquired through the bite of an infected

arthropod:

Malaria - caused by single-cell parasitic protozoa Plasmodium;

transmitted to humans via the bite of the female Anopheles mosquito;

parasites multiply in the liver attacking red blood cells resulting in

cycles of fever, chills, and sweats accompanied by anemia; death due to

damage to vital organs and interruption of blood supply to the brain;

endemic in 100, mostly tropical, countries with 90% of cases and the

majority of 1.5-2.5 million estimated annual deaths occurring in sub-

Saharan Africa.

Dengue fever - mosquito-borne (Aedes aegypti) viral disease associated

with urban environments; manifests as sudden onset of fever and severe

headache; occasionally produces shock and hemorrhage leading to death

in 5% of cases.

Yellow fever - mosquito-borne viral disease; severity ranges from

influenza-like symptoms to severe hepatitis and hemorrhagic fever;

occurs only in tropical South America and sub-Saharan Africa, where

most cases are reported; fatality rate is less than 20%.

Japanese Encephalitis - mosquito-borne (Culex tritaeniorhynchus) viral

disease associated with rural areas in Asia; acute encephalitis can

progress to paralysis, coma, and death; fatality rates 30%.

African Trypanosomiasis - caused by the parasitic protozoa Trypanosoma;

transmitted to humans via the bite of bloodsucking Tsetse flies;

infection leads to malaise and irregular fevers and, in advanced cases

when the parasites invade the central nervous system, coma and death;

endemic in 36 countries of sub-Saharan Africa; cattle and wild animals

act as reservoir hosts for the parasites.

Cutaneous Leishmaniasis - caused by the parasitic protozoa leishmania;

transmitted to humans via the bite of sandflies; results in skin

lesions that may become chronic; endemic in 88 countries; 90% of cases

occur in Iran, Afghanistan, Syria, Saudi Arabia, Brazil, and Peru; wild

and domesticated animals as well as humans can act as reservoirs of

infection.

Plague - bacterial disease transmitted by fleas normally associated

with rats; person-to-person airborne transmission also possible; recent

plague epidemics occurred in areas of Asia, Africa, and South America

associated with rural areas or small towns and villages; manifests as

fever, headache, and painfully swollen lymph nodes; disease progresses

rapidly and without antibiotic treatment leads to pneumonic form with a

death rate in excess of 50%.

Crimean-Congo hemorrhagic fever - tick-borne viral disease; infection

may also result from exposure to infected animal blood or tissue;

geographic distribution includes Africa, Asia, the Middle East, and

Eastern Europe; sudden onset of fever, headache, and muscle aches

followed by hemorrhaging in the bowels, urine, nose, and gums;

mortality rate is approximately 30%.

Rift Valley fever - viral disease affecting domesticated animals and

humans; transmission is by mosquito and other biting insects; infection

may also occur through handling of infected meat or contact with blood;

geographic distribution includes eastern and southern Africa where

cattle and sheep are raised; symptoms are generally mild with fever and

some liver abnormalities, but the disease may progress to hemorrhagic

fever, encephalitis, or ocular disease; fatality rates are low at about

1% of cases.

Chikungunya - mosquito-borne (Aedes aegypti) viral disease associated

with urban environments, similar to Dengue Fever; characterized by

sudden onset of fever, rash, and severe joint pain usually lasting 3-7

days, some cases result in persistent arthritis.

water contact diseases acquired through swimming or wading in

freshwater lakes, streams, and rivers:

Leptospirosis - bacterial disease that affects animals and humans;

infection occurs through contact with water, food, or soil contaminated

by animal urine; symptoms include high fever, severe headache,

vomiting, jaundice, and diarrhea; untreated, the disease can result in

kidney damage, liver failure, meningitis, or respiratory distress;

fatality rates are low but left untreated recovery can take months.

Schistosomiasis - caused by parasitic trematode flatworm Schistosoma;

fresh water snails act as intermediate host and release larval form of

parasite that penetrates the skin of people exposed to contaminated

water; worms mature and reproduce in the blood vessels, liver, kidneys,

and intestines releasing eggs, which become trapped in tissues

triggering an immune response; may manifest as either urinary or

intestinal disease resulting in decreased work or learning capacity;

mortality, while generally low, may occur in advanced cases usually due

to bladder cancer; endemic in 74 developing countries with 80% of

infected people living in sub-Saharan Africa; humans act as the

reservoir for this parasite.

aerosolized dust or soil contact disease acquired through inhalation of

aerosols contaminated with rodent urine:

Lassa fever - viral disease carried by rats of the genus Mastomys;

endemic in portions of West Africa; infection occurs through direct

contact with or consumption of food contaminated by rodent urine or

fecal matter containing virus particles; fatality rate can reach 50% in

epidemic outbreaks.

respiratory disease acquired through close contact with an infectious

person:

Meningococcal meningitis - bacterial disease causing an inflammation of

the lining of the brain and spinal cord; one of the most important

bacterial pathogens is Neisseria meningitidis because of its potential

to cause epidemics; symptoms include stiff neck, high fever, headaches,

and vomiting; bacteria are transmitted from person to person by

respiratory droplets and facilitated by close and prolonged contact

resulting from crowded living conditions, often with a seasonal

distribution; death occurs in 5-15% of cases, typically within 24-48

hours of onset of symptoms; highest burden of meningococcal disease

occurs in the hyperendemic region of sub-Saharan Africa known as the

"Meningitis Belt" which stretches from Senegal east to Ethiopia.

animal contact disease acquired through direct contact with local

animals:

Rabies - viral disease of mammals usually transmitted through the bite

of an infected animal, most commonly dogs; virus affects the central

nervous system causing brain alteration and death; symptoms initially

are non-specific fever and headache progressing to neurological

symptoms; death occurs within days of the onset of symptoms.

Manpower available for military service: This entry gives the number

of males and females falling in the military age range for a country

(defined as being ages 16-49) and assumes that every individual is fit

to serve.

Manpower fit for military service: This entry gives the number of

males and females falling in the military age range for a country

(defined as being ages 16-49) and who are not otherwise disqualified

for health reasons; accounts for the health situation in the country

and provides a more realistic estimate of the actual number fit to

serve.

Manpower reaching militarily significant age annually: This entry

gives the number of males and females entering the military manpower

pool (i.e., reaching age 16) in any given year and is a measure of the

availability of military-age young adults.

Map references: This entry includes the name of the Factbook reference

map on which a country may be found. Note that boundary representations

on these maps are not necessarily authoritative. The entry on

Geographic coordinates may be helpful in finding some smaller

countries.

Maritime claims: This entry includes the following claims, the

definitions of which are excerpted from the United Nations Convention

on the Law of the Sea (UNCLOS), which alone contains the full and

definitive descriptions:

territorial sea - the sovereignty of a coastal state extends beyond its

land territory and internal waters to an adjacent belt of sea,

described as the territorial sea in the UNCLOS (Part II); this

sovereignty extends to the air space over the territorial sea as well

as its underlying seabed and subsoil; every state has the right to

establish the breadth of its territorial sea up to a limit not

exceeding 12 nautical miles; the normal baseline for measuring the

breadth of the territorial sea is the mean low-water line along the

coast as marked on large-scale charts officially recognized by the

coastal state; the UNCLOS describes specific rules for archipelagic

states.

contiguous zone - according to the UNCLOS (Article 33), this is a zone

contiguous to a coastal state's territorial sea, over which it may

exercise the control necessary to: prevent infringement of its customs,

fiscal, immigration, or sanitary laws and regulations within its

territory or territorial sea; punish infringement of the above laws and

regulations committed within its territory or territorial sea; the

contiguous zone may not extend beyond 24 nautical miles from the

baselines from which the breadth of the territorial sea is measured

(e.g. the US has claimed a 12-nautical mile contiguous zone in addition

to its 12-nautical mile territorial sea).

exclusive economic zone (EEZ) - the UNCLOS (Part V) defines the EEZ as

a zone beyond and adjacent to the territorial sea in which a coastal

state has: sovereign rights for the purpose of exploring and

exploiting, conserving and managing the natural resources, whether

living or non-living, of the waters superjacent to the seabed and of

the seabed and its subsoil, and with regard to other activities for the

economic exploitation and exploration of the zone, such as the

production of energy from the water, currents, and winds; jurisdiction

with regard to the establishment and use of artificial islands,

installations, and structures; marine scientific research; the

protection and preservation of the marine environment; the outer limit

of the exclusive economic zone shall not exceed 200 nautical miles from

the baselines from which the breadth of the territorial sea is

measured.

continental shelf - the UNCLOS (Article 76) defines the continental

shelf of a coastal state as comprising the seabed and subsoil of the

submarine areas that extend beyond its territorial sea throughout the

natural prolongation of its land territory to the outer edge of the

continental margin, or to a distance of 200 nautical miles from the

baselines from which the breadth of the territorial sea is measured

where the outer edge of the continental margin does not extend up to

that distance; the continental margin comprises the submerged

prolongation of the landmass of the coastal state, and consists of the

seabed and subsoil of the shelf, the slope and the rise; wherever the

continental margin extends beyond 200 nautical miles from the baseline,

coastal states may extend their claim to a distance not to exceed 350

nautical miles from the baseline or 100 nautical miles from the 2500

meter isobath; it does not include the deep ocean floor with its

oceanic ridges or the subsoil thereof.

exclusive fishing zone - while this term is not used in the UNCLOS,

some states (e.g., the United Kingdom) have chosen not to claim an EEZ,

but rather to claim jurisdiction over the living resources off their

coast; in such cases, the term exclusive fishing zone is often used;

the breadth of this zone is normally the same as the EEZ or 200

nautical miles.

Market value of publicly traded shares: This entry gives the value of

shares issued by publicly traded companies at a price determined in the

national stock markets on the final day of the period indicated. It is

simply the latest price per share multiplied by the total number of

outstanding shares, cumulated over all companies listed on the

particular exchange.

Median age: This entry is the age that divides a population into two

numerically equal groups; that is, half the people are younger than

this age and half are older. It is a single index that summarizes the

age distribution of a population. Currently, the median age ranges from

a low of about 15 in Uganda and Gaza Strip to 40 or more in several

European countries and Japan. See the entry for "Age structure" for the

importance of a young versus an older age structure and, by

implication, a low versus a higher median age.

Merchant marine: Merchant marine may be defined as all ships engaged

in the carriage of goods; or all commercial vessels (as opposed to all

nonmilitary ships), which excludes tugs, fishing vessels, offshore oil

rigs, etc. This entry contains information in four fields - total,

ships by type, foreign-owned, and registered in other countries.

Total includes the number of ships (1,000 GRT or over), total DWT for

those ships, and total GRT for those ships. DWT or dead weight tonnage

is the total weight of cargo, plus bunkers, stores, etc., that a ship

can carry when immersed to the appropriate load line. GRT 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 - note: This entry includes miscellaneous military

information of significance not included elsewhere.

Military branches: This entry lists the service branches subordinate

to defense ministries or the equivalent (typically ground, naval, air,

and marine forces).

Military expenditures: This entry gives spending on defense programs

for the most recent year available as a percent of gross domestic

product (GDP); the GDP is calculated on an exchange rate basis, i.e.,

not in terms of purchasing power parity (PPP).

Military service age and obligation: This entry gives the required

ages for voluntary or conscript military service and the length of

service obligation.

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 gas - consumption: This entry is the total natural gas

consumed in cubic meters (cu m). The discrepancy between the amount of

natural gas produced and/or imported and the amount consumed and/or

exported is due to the omission of stock changes and other complicating

factors.

Natural gas - exports: This entry is the total natural gas exported in

cubic meters (cu m).

Natural gas - imports: This entry is the total natural gas imported in

cubic meters (cu m).

Natural gas - production: This entry is the total natural gas produced

in cubic meters (cu m). The discrepancy between the amount of natural

gas produced and/or imported and the amount consumed and/or exported is

due to the omission of stock changes and other complicating factors.

Natural gas - proved reserves: This entry is the stock of proved

reserves of natural gas in cubic meters (cu m). Proved reserves are

those quantities of natural gas, which, by analysis of geological and

engineering data, can be estimated with a high degree of confidence to

be commercially recoverable from a given date forward, from known

reservoirs and under current economic conditions.

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 cause

problems such as increasing unemployment and potential ethnic strife

(if people are coming in) or a reduction in the labor force, perhaps in

certain key sectors (if people are leaving).

Oil - consumption: This entry is the total oil consumed in barrels per

day (bbl/day). The discrepancy between the amount of oil produced

and/or imported and the amount consumed and/or exported is due to the

omission of stock changes, refinery gains, and other complicating

factors.

Oil - exports: This entry is the total oil exported in barrels per day

(bbl/day), including both crude oil and oil products.

Oil - imports: This entry is the total oil imported in barrels per day

(bbl/day), including both crude oil and oil products.

The 2008 CIA World Factbook · 第 3 / 374 段