Bhutan

Kingdom of BhutanDruk Gyalkhap

constitutional monarchy

Bhutan as the 2017 edition of the CIA World Factbook published it: 154 fields, one of 36 editions from 1990 to 2025.

field in that editiontext changed from the edition beforenot in that editionthe open editionEach field below ends in its editions, 1990 to 2025. Point at a year above to follow it down.

CapitalThimphu, UTC+6
Position27 30 N, 90 30 E
Area38,394 sq km
LocationSouthern Asia, between China and India
Populationas each edition published it
758,288 people July 2017 est. · 1.57m in 1990
Population growth% a year
1.07% 2017 est. · 2.33% in 1993
Median ageyears
27.6 years 2017 est. · 20.1 yrs in 2003
Life expectancyyears at birth
70.6 years 2017 est. · 50.17 yrs in 1993
Fertility ratechildren per woman
1.9 children per woman 2017 est. · 5 in 1990
Infant mortalitydeaths per 1,000 live births
32.1 deaths per 1,000 live births 2017 est. · 137 in 1990
GDP per capitaeach edition's own dollars
$8,200 2016 est. · $200 in 1993
GDP real growth% a year
6.2% 2016 est. · 3.1% in 1993

Introduction

1 field

Background

Following Britain’s victory in the 1865 Duar War, Britain and Bhutan signed the Treaty of Sinchulu, under which Bhutan would receive an annual subsidy in exchange for ceding land to British India. Ugyen WANGCHUCK - who had served as the de facto ruler of an increasingly unified Bhutan and had improved relations with the British toward the end of the 19th century - was named king in 1907. Three years later, a treaty was signed whereby the British agreed not to interfere in Bhutanese internal affairs, and Bhutan allowed Britain to direct its foreign affairs.

Bhutan negotiated a similar arrangement with independent India after 1947. Two years later, a formal Indo-Bhutanese accord returned to Bhutan a small piece of the territory annexed by the British, formalized the annual subsidies the country received, and defined India's responsibilities in defense and foreign relations. Under a succession of modernizing monarchs beginning in the 1950s, Bhutan joined the UN in 1971 and slowly continued its engagement beyond its borders.

In March 2005, King Jigme Singye WANGCHUCK unveiled the government's draft constitution - which introduced major democratic reforms - and held a national referendum for its approval. In December 2006, the King abdicated the throne in favor of his son, Jigme Khesar Namgyel WANGCHUCK. In early 2007, India and Bhutan renegotiated their treaty, eliminating the clause that stated that Bhutan would be "guided by" India in conducting its foreign policy, although Thimphu continues to coordinate closely with New Delhi.

Elections for seating the country's first parliament were completed in March 2008; the king ratified the country's first constitution in July 2008. Bhutan experienced a peaceful turnover of power following parliamentary elections in 2013, which resulted in the defeat of the incumbent party. The disposition of some 18,000 refugees of the roughly 100,000 who fled or were forced out of Bhutan in the 1990s - and who are housed in two UN refugee camps in Nepal - remains unresolved.

Geography

Southern Asia, between China and India

18 fields
Area
38,394sq km
land: 38,394 sq kmwater: 0 sq kmcountry comparison to the world: 137slightly larger than Maryland; about one-half the size of Indiana
Coastline
0km
(landlocked)Maritime claims: none (landlocked)
Highest point
7,570m
Gangkar Puensummean elevation: 2,220 melevation extremes: lowest point: Drangeme Chhu 97 m
Land boundaries
1,136km
border countries (2): China 477 km, India 659 km

Location

Southern Asia, between China and India

Geographic coordinates

27 30 N, 90 30 E

Climate

  • varies;
  • tropical in southern plains;
  • cool winters and hot summers in central valleys;
  • severe winters and cool summers in Himalayas

Terrain

mostly mountainous with some fertile valleys and savanna

Natural resources

timber, hydropower, gypsum, calcium carbonate

Land use

agricultural land:
13.6%;
  • arable land 2.6%;
  • permanent crops 0.3%;
  • permanent pasture 10.7%
forest:
85.5%
other:
0.9% (2011 est.)

Irrigated land

320 sq km (2012)

Natural hazards

  • violent storms from the Himalayas are the source of the country's Bhutanese name, which translates as Land of the Thunder Dragon;
  • frequent landslides during the rainy season

Environment - current issues

soil erosion; limited access to potable water

Environment - international agreements

party to:
Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Desertification, Endangered Species, Hazardous Wastes, Ozone Layer Protection
signed, but not ratified:
Law of the Sea

Geography - note

  • landlocked;
  • strategic location between China and India;
  • controls several key Himalayan mountain passes

People and Society

35 fields

Age structuremale left, female right · (2017 est.)

24,874
65 and over6.29%
22,821
24,482
55-646.03%
21,206
173,310
25-5443.07%
153,314
72,634
15-2418.81%
70,018
99,977
0-1425.8%
95,652
MaleFemaleDependency ratios: total dependency ratio: 47.3 · youth dependency ratio: 40.4 · elderly dependency ratio: 6.9 · potential support ratio: 14.5 (2015 est.)
Population
758,288
(July 2017 est.)country comparison to the world: 165growth rate: 1.07% (2017 est.)country comparison to the world: 104

Per 1,000 population(2017 est.)

Birth
17.3Death
6.5Net migration
0

Male · female

TotalMale · femaleLife expectancy years (2017 est.)70.6
69.6 · 71.7Infant mortality deaths/1,000 live births (2017 est.)32.1
32.3 · 31.8Literacy (2015 est.)64.9%
73.1% · 55%
TotalMale · femaleMedian age years (2017 est.)27.6
28.2 · 27.1School life expectancy years (2013)13
12 · 13Youth unemployment ages 15-24 (2015 est.)10.7%
8.2% · 12.7%
MaleFemaleLife expectancy country comparison to the world: 158 · Infant mortality country comparison to the world: 59 · Literacy definition: age 15 and over can read and write · Median age country comparison to the world: 143 · Youth unemployment ages 15-24 country comparison to the world: 119

Ethnic groups

Ngalop (also known as Bhote) 50%ethnic Nepalese 35% (includes Lhotsampas - one of several Nepalese ethnic groups)indigenous or migrant tribes 15%

Religions(2005 est.)

Lamaistic Buddhist 75.3%Indian- and Nepalese-influenced Hinduism 22.1%other 2.6% (2005 est.)
Urban population
40.1%of total population
(2017)rate of urbanization: 2.89% annual rate of change (2015-20 est.)Major urban areas - population: THIMPHU (capital) 152,000 (2014)
Improved drinking water
100%of population
urban: 100% of populationrural: 100% of populationurban: 0% of populationrural: 0% of populationtotal: 0% of population (2015 est.)
Improved sanitation
50.4%of population
urban: 77.9% of populationrural: 33.1% of populationurban: 22.1% of populationrural: 66.9% of populationtotal: 49.6% of population (2015 est.)
Maternal mortality rate
148deaths/100,000 live births
(2015 est.)country comparison to the world: 61

Nationality

noun:
Bhutanese (singular and plural)
adjective:
Bhutanese

Languages

Sharchhopka 28%, Dzongkha (official) 24%, Lhotshamkha 22%, other 26% (includes foreign languages) (2005 est.)

Sex ratio

at birth:
1.05 male(s)/female
0-14 years:
1.04 male(s)/female
15-24 years:
1.04 male(s)/female
25-54 years:
1.14 male(s)/female
55-64 years:
1.16 male(s)/female
65 years and over:
1.1 male(s)/female
total population:
1.09 male(s)/female (2016 est.)

Total fertility rate

1.9 children born/woman (2017 est.) country comparison to the world: 135

Health expenditures

3.6% of GDP (2014) country comparison to the world: 168

Physicians density

0.26 physicians/1,000 population (2014)

Hospital bed density

1.8 beds/1,000 population (2012)

Major infectious diseases

degree of risk:
high
food or waterborne diseases:
bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne diseases:
dengue fever (2016)

Obesity - adult prevalence rate

6.4% (2016) country comparison to the world: 167

Children under the age of 5 years underweight

12.8% (2010) country comparison to the world: 59

Education expenditures

7.4% of GDP (2015) country comparison to the world: 86

Government

Constitutional monarchy; King Jigme Khesar Namgyel WANGCHUCK (since 14 December 2006); Prime Minister Tshering TOBGAY (since 27 July 2013)

22 fields

National Council, 47 seatsone dot, one seat

PDP 32DPT 15

Percent of vote

in second round - PDP 54.9%DPT 45.1%

Country name

conventional long form:
Kingdom of Bhutan
conventional short form:
Bhutan
local long form:
Druk Gyalkhap
local short form:
Druk Yul
etymology:
  • named after the Bhotia, the ethnic Tibetans who migrated from Tibet to Bhutan;
  • "Bod" is the Tibetan name for their land;
  • the Bhutanese name "Druk Yul" means "Land of the Thunder Dragon"

Government type

constitutional monarchy

Capital

name:
Thimphu
geographic coordinates:
27 28 N, 89 38 E
time difference:
UTC+6 (11 hours ahead of Washington, DC, during Standard Time)

Administrative divisions

  • 20 districts (dzongkhag, singular and plural);
  • Bumthang, Chhukha, Chirang, Daga, Gasa, Geylegphug, Ha, Lhuntshi, Mongar, Paro, Pemagatsel, Punakha, Samchi, Samdrup Jongkhar, Shemgang, Tashigang, Tashi Yangtse, Thimphu, Tongsa, Wangdi Phodrang

Independence

17 December 1907 (became a unified kingdom under its first hereditary king)

National holiday

National Day (Ugyen WANGCHUCK became first hereditary king), 17 December (1907)

Constitution

history:
previous governing documents were various royal decrees; first constitution drafted November 2001 - March 2005, ratified 18 July 2008
amendments:
  • proposed as a motion by simple majority vote in a joint session of Parliament;
  • passage requires at least a three-fourths majority vote in a joint session of the next Parliament and assented to by the king;
  • amended 2011 (2017)

International law organization participation

has not submitted an ICJ jurisdiction declaration; non-party state to the ICCt

Citizenship

citizenship by birth:
no
citizenship by descent only:
the father must be a citizen of Bhutan
dual citizenship recognized:
no
residency requirement for naturalization:
10 years

Suffrage

18 years of age; universal

Executive branch

chief of state:
King Jigme Khesar Namgyel WANGCHUCK (since 14 December 2006); note - King Jigme Singye WANGCHUCK abdicated the throne on 14 December 2006 to his son
head of government:
Prime Minister Tshering TOBGAY (since 27 July 2013)
cabinet:
Council of Ministers or Lhengye Zhungtshog members nominated by the monarch in consultation with the prime minister and approved by the National Assembly; members serve 5-year terms
elections/appointments:
  • the monarchy is hereditary but can be removed by a two-third vote of Parliament;
  • leader of the majority party in Parliament is nominated as the prime minister, appointed by the monarch

Legislative branch

description:
bicameral Parliament or Chi Tshog consists of the non-partisan National Council or Gyelyong Tshogde (25 seats; 20 members directly elected in single-seat constituencies by simple majority vote and 5 members appointed by the king; members serve 5-year terms) and the National Assembly or Tshogdu (47 seats; members directly elected in single-seat constituencies by proportional representation vote to serve 5-year terms)
elections:
  • National Council election last held on 23 April 2013 (next to be held in 2018);
  • National Assembly election first round held on 31 May 2013 and second round on 13 July 2013 ((next to be held in 2018)
election results:
  • National Council - seats by party - independent 20 (all candidates required to run as independents);
  • National Assembly - percent of vote by party in first round - DPT 44.5%;
  • PDP 32.5%;
  • DNT 17.0%;
  • DCT 5.9%;
  • percent of vote in second round - PDP 54.9%, DPT 45.1%;
  • seats by party - PDP 32, DPT 15

Judicial branch

highest court(s):
Supreme Court (consists of 5 justices including the chief justice); note - the Supreme Court has sole jurisdiction in constitutional matters
judge selection and term of office:
  • Supreme Court chief justice appointed by the monarch upon the advice of the National Judicial Commission, a 4-member body to include the Legislative Committee of the National Assembly, the attorney general, the Chief Justice of Bhutan and the senior Associate Justice of the Supreme Court;
  • other judges (drangpons) appointed by the monarch from among the High Court judges selected by the National Judicial Commission;
  • chief justice serves a 5-year term or until reaching age 65 years, whichever is earlier;
  • the 4 other judges serve 10-year terms or until age 65, whichever is earlier
subordinate courts:
  • High Court (first appellate court);
  • District or Dzongkhag Courts;
  • sub-district or Dungkhag Courts

Political parties and leaders

  • Bhutan Kuen-Nyam Party or BKP [Dasho Neten ZANGMO]
  • Bhutan Peace and Prosperity Party (Druk Phuensum Tshogpa) or DPT [Pema GYAMTSHO]
  • Druk Chirwang Tshogpa or DCT [Lily WANGCHUK]
  • Druk Nymarup Tshogpa or DNT [Tandin DORJI]
  • People's Democratic Party or PDP [Tshering TOBGAY]

Political pressure groups and leaders

Druk National Congress or DNC [Gedun CHOEPHEL] (group in exile); United Front for Democracy or UFD (group in exile); United Front for Democracy Against Dictatorship or UDD [Jatuporn PROMPAN, chairman]; other: Buddhist clergy; ethnic Nepali-Bhutanese organizations (exiled)

International organization participation

ADB, BIMSTEC, CP, FAO, G-77, IBRD, ICAO, IDA, IFAD, IFC, IMF, Interpol, IOC, IOM (observer), IPU, ISO (correspondent), ITSO, ITU, MIGA, NAM, OPCW, SAARC, SACEP, UN, UNCTAD, UNESCO, UNIDO, UNTSO, UNWTO, UPU, WCO, WHO, WIPO, WMO, WTO (observer)

Diplomatic representation in the US

  • none;
  • note - the Permanent Mission to the UN for Bhutan has consular jurisdiction in the US;
  • the permanent representative to the UN is Kunzang C. NAMGYEL (since February 2014);
  • address: 343 East 43rd Street, New York, NY 10017;
  • telephone [1] (212) 682-2268;
  • FAX [1] (212) 661-0551
consulate(s) general:
New York

Diplomatic representation from the US

the US and Bhutan have no formal diplomatic relations, although frequent informal contact is maintained via the US embassy in New Delhi (India) and Bhutan's Permanent Mission to the UN

Flag description

  • divided diagonally from the lower hoist-side corner;
  • the upper triangle is yellow and the lower triangle is orange;
  • centered along the dividing line is a large black and white dragon facing away from the hoist side;
  • the dragon, called the Druk (Thunder Dragon), is the emblem of the nation;
  • its white color stands for purity and the jewels in its claws symbolize wealth;
  • the background colors represent spiritual and secular powers within Bhutan: the orange is associated with Buddhism, while the yellow denotes the ruling dynasty

National symbol(s)

thunder dragon known as Druk Gyalpo; national colors: orange, yellow

National anthem

name:
"Druk tsendhen" (The Thunder Dragon Kingdom)
lyrics/music:
Gyaldun Dasho Thinley DORJI/Aku TONGMI

note: adopted 1953

Economy

Bhutan's small economy is based largely on hydropower, agriculture, and forestry, which provide the main livelihood for more than half of the population.

39 fields
GDP, purchasing power parity
$6.508billion
(2016 est.) · $6.049 billion (2015 est.) · $5.638 billion (2014 est.)note: data are in 2016 dollarscountry comparison to the world: 167official exchange rate: $2.121 billion (2016 est.)
GDP per capita, PPP
$8,200
(2016 est.) · $7,900 (2015 est.) · $7,500 (2014 est.)note: data are in 2016 dollarscountry comparison to the world: 149
Real growth rate
6.2%
(2016 est.) · 6.1% (2015 est.) · 4% (2014 est.)country comparison to the world: 24industrial production growth: 5.3% (2016 est.)country comparison to the world: 45
Inflation, consumer prices
3.9%
(2016 est.) · 4.5% (2015 est.)country comparison to the world: 168

GDP - composition, by sector of origin(2016 est.)

agriculture 16.4%industry 42.2%services 41.4% (2016 est.)

By end use% of GDP

Household consumption
54.7%Government consumption
17.9%Fixed capital
50.1%Inventories
-0.1%Exports
29.4%Imports
-52.1% (2016 est.)

Budget

Revenues
$650.9 millionExpenditures
$713.7 million
note: the government of India finances nearly one-quarter of Bhutan's budget expenditures (2016 est.)

Economy - overview

Bhutan's small economy is based largely on hydropower, agriculture, and forestry, which provide the main livelihood for more than half of the population. Because rugged mountains dominate the terrain and make the building of roads and other infrastructure difficult and expensive, industrial production is primarily of the cottage industry type.

The economy is closely aligned with India's through strong trade and monetary links and is dependent on India for financial assistance and migrant laborers for development projects, especially for road construction. Bhutan inked a pact in December 2014 to expand duty-free trade with Bangladesh.

Multilateral development organizations administer most educational, social, and environment programs, and take into account the government's desire to protect the country's environment and cultural traditions. For example, the government, in its cautious expansion of the tourist sector, encourages visits by upscale, environmentally conscientious tourists.

Complicated controls and uncertain policies in areas such as industrial licensing, trade, labor, and finance continue to hamper foreign investment.

Bhutan’s largest export - hydropower to India - could spur sustainable growth in the coming years if Bhutan resolves chronic delays in construction. Bhutan’s hydropower exports comprise 40% of total exports and 25% of GDP. Bhutan currently taps only 6.5% of its 24,000-megawatt hydropower potential and is behind schedule in building 12 new hydropower dams with a combined capacity of 10,000 megawatts by 2020 in accordance with a deal signed in 2008 with India.

The high volume of imported materials to build hydropower plants has expanded Bhutan's trade and current account deficits. Bhutan also is exploring energy exports to Bangladesh.

Gross national saving

33.4% of GDP (2016 est.) · 32% of GDP (2015 est.) · 35% of GDP (2014 est.) country comparison to the world: 71

Agriculture - products

rice, corn, root crops, citrus; dairy products, eggs

Industries

cement, wood products, processed fruits, alcoholic beverages, calcium carbide, tourism

Labor force

353,000 note: major shortage of skilled labor (2015 est.) country comparison to the world: 161

Labor force - by occupation

agriculture:
58%
industry:
20%
services:
22% (2015 est.)

Unemployment rate

3.2% (2016 est.) · 2.6% (2014 est.) country comparison to the world: 23

Household income or consumption by percentage share

lowest 10%:
2.8%
highest 10%:
30.6% (2012)

Distribution of family income - Gini index

38.8 (2012) · 38.1 (2007) country comparison to the world: 69

Taxes and other revenues

30.8% of GDP (2016 est.) country comparison to the world: 76

Budget surplus (+) or deficit (-)

-3% of GDP (2016 est.) country comparison to the world: 118

Public debt

106.8% of GDP (2016 est.) · 91.5% of GDP (2015 est.) country comparison to the world: 16

Fiscal year

1 July - 30 June

Commercial bank prime lending rate

14.15% (31 December 2016 est.) · 14.15% (31 December 2015 est.) country comparison to the world: 51

Stock of narrow money

$769 million (31 December 2016 est.) · $669.9 million (31 December 2015 est.) country comparison to the world: 159

Stock of broad money

$1.379 billion (31 December 2016 est.) · $1.174 billion (31 December 2015 est.) country comparison to the world: 166

Stock of domestic credit

$1.17 billion (31 December 2016 est.) · $1.031 billion (31 December 2015 est.) country comparison to the world: 165

Market value of publicly traded shares

$355.3 million (31 December 2015) · $283.4 million (31 December 2012) country comparison to the world: 115

Current account balance

$-618 million (2016 est.); $-571.7 million (2015 est.) country comparison to the world: 105

Exports

$495.3 million (2016 est.) · $581.5 million (2015 est.) country comparison to the world: 171

Exports - commodities

electricity (to India), ferrosilicon, cement, cardamom, calcium carbide, steel rods/bars, dolomite, gypsum

Exports - partners

India 95.7% (2016)

Imports

$1.033 billion (2016 est.) · $1.009 billion (2015 est.) country comparison to the world: 180

Imports - commodities

fuel and lubricants, airplanes, machinery and parts, rice, motor vehicles

Imports - partners

India 91.1% (2016)

Debt - external

$2.355 billion (31 December 2016 est.) · $1.955 billion (31 December 2015 est.) country comparison to the world: 149

Stock of direct foreign investment - at home

$168.4 million (31 December 2016 est.) · $238 million (31 December 2015 est.) country comparison to the world: 128

Exchange rates

ngultrum (BTN) per US dollar - 67.195 (2016 est.) · 67.2 (2015 est.) · 64.15 (2014 est.) · 61.03 (2013 est.) · 53.44 (2012 est.)

Energy

24 fields

Electrification% of population · (2012)

100%Urban
53%Rural
76%Total
population without electricity: 187,531

Installed generating capacity, 1.631 million kW(2015 est.)

Fossil fuels 1% of total installed capacity (2015 est.)Hydroelectric plants 99% of total installed capacity (2015 est.)Nuclear fuels 0% · Other renewable sources 0%
Electricity production
7.732 billion (2015 est.)Electricity consumption
2.6 billion (2015 est.)Electricity exports
5.308 billion (2015 est.)Electricity imports
200 million (2015 est.)Refined petroleum imports
3,135 (2014 est.)Refined petroleum consumption
3,000 (2015 est.)

Crude oil - production

0 bbl/day (2016 est.) country comparison to the world: 115

Crude oil - exports

0 bbl/day (2014 est.) country comparison to the world: 100

Crude oil - imports

0 bbl/day (2014 est.) country comparison to the world: 104

Crude oil - proved reserves

0 bbl (1 January 2017 es) country comparison to the world: 114

Refined petroleum products - production

0 bbl/day (2014 est.) country comparison to the world: 123

Refined petroleum products - exports

0 bbl/day (2014 est.) country comparison to the world: 137

Natural gas - production

0 cu m (2016 est.) country comparison to the world: 114

Natural gas - consumption

0 cu m (2016 est.) country comparison to the world: 162

Natural gas - exports

0 cu m (2016 est.) country comparison to the world: 75

Natural gas - imports

0 cu m (2016 est.) country comparison to the world: 98

Natural gas - proved reserves

0 cu m (2016 est.) country comparison to the world: 120

Carbon dioxide emissions from consumption of energy

260,300 Mt (2015 est.) country comparison to the world: 197

Communications

6 fields

Per 100 inhabitants(July 2016 est.)

93Mobile cellular
41.8%Internet users, % of population
3Fixed lines
Mobile cellular
698,373
(July 2016 est.)
Internet users
313,347
(July 2016 est.)
Fixed lines
21,081
(July 2016 est.) · country code .bt

Telephone system

general assessment:
urban towns and district headquarters have telecommunications services
domestic:
  • domestic service inadequate, especially in rural areas;
  • mobile-cellular service, begun in 2003, is now widely available;
  • Internet services widely available
international:
  • country code - 975;
  • international telephone and telegraph service via landline and microwave relay through India;
  • satellite earth station - 1 Intelsat (2016)

Broadcast media

  • state-owned TV station established in 1999;
  • cable TV service offers dozens of Indian and other international channels;
  • first radio station, privately launched in 1973, is now state-owned;
  • 5 private radio stations are currently broadcasting (2012)

Transportation

6 fields

Airports by runway lengthpaved only

1,524 to 2,437 m
1914 to 1,523 m
1

Airports by runway lengthunpaved only

914 to 1,523 m
1

National air transport system

number of registered air carriers:
2; inventory of registered aircraft operated by air carriers: 6
annual passenger traffic on registered air carriers:
162,864
annual freight traffic on registered air carriers:
538,041 mt-km (2015)

Airports

2 (2013) country comparison to the world: 198

Roadways

total:
10,578 km
paved:
2,975 km (includes 2,180 km of national highways)
unpaved:
7,603 km (2013)

note: a more recent figure for 2015 lists 11,177 km for total roadway length, but no breakdown of paved or unpaved

country comparison to the world: 135

Military and Security

Royal Bhutan Army (includes Royal Bodyguard and Royal Bhutan Police) (2009)

2 fields

Military branches

Royal Bhutan Army (includes Royal Bodyguard and Royal Bhutan Police) (2009)

Military service age and obligation

  • 18 years of age for voluntary military service;
  • no conscription;
  • militia training is compulsory for males aged 20-25, over a 3-year period (2012)

Transnational Issues

1 field

Disputes - international

lacking any treaty describing the boundary, Bhutan and China continue negotiations to establish a common boundary alignment to resolve territorial disputes arising from substantial cartographic discrepancies, the most contentious of which lie in Bhutan's west along China’s Chumbi salient

Cite this entry

Central Intelligence Agency. “Bhutan.” The World Factbook 2017. Archived by The Factbook, thefactbook.org/bhutan/2017.