World's 30 most corrupt countries

Public outcry at corruption, impunity and economic instability sent shockwaves around the world in 2011.

Protests in many countries quickly spread to unite people from all parts of society. Their backgrounds may be diverse, but their message is the same: more transparency and accountability is needed from our leaders.

Transparency International's Corruption Perceptions Index ranks countries and territories according to their perceived levels of public sector corruption.

The data sources used to compile the index include questions relating to the abuse of public power and focus on: bribery of public officials, kickbacks in public procurement, embezzlement of public funds, and on questions that probe the strength and effectiveness of anti-corruption efforts in the public sector.

As such, it covers both the administrative and political aspects of corruption. In producing the index, the scores of countries/territories for the specific corruption-related questions in the data sources are combined to calculate a single score for each country.

It is an aggregate indicator that combines different sources of information about corruption, making it possible to compare countries.

Let us take a look at 30 most corrupt countries, based on Transparency International's study.

Somalia

Score: 1

Region rank: 48

Region: Sub-Saharan Africa

Sources: 4

Confidence range: 0.6-1.4

World ranking: 182

...

North Korea

Score: 1

Region rank: 35

Region: Asia-Pacific

Sources: 3

Confidence range: 0.7-1.3

World ranking: 182

...

Myanmar

Score: 1.5

Region rank: 33

Region: Asia-Pacific

Sources: 4

Confidence range: 1-1.9

World ranking: 180

...

Afghanistan

Score: 1.5

Region rank: 33

Region: Asia-Pacific

Sources: 4

Confidence range: 1.4-1.7

World ranking: 180

...

Uzbekistan

Score: 1.6

Region rank: 19

Region: Eastern-Europe and Central Europe

Sources: 6

Confidence range: 1.5-1.8

World ranking: 177

...

Turkmenistan

Score: 1.6

Region rank: 19

Region: Eastern Europe and Central Europe

Sources: 3

Confidence range: 1.4-1.8

World ranking: 177

...

Sudan

Score: 1.6

Region rank: 47

Region: Sub-Saharan Africa

Sources: 6

Confidence range: 1.4-1.7

World ranking: 177

...

Iraq

Score: 1.8

Region rank: 18

Region: Middle East and North Africa

Sources: 4

Confidence range: 1.7-1.9

World ranking: 175

...

Haiti

Score: 1.8

Region rank: 32

Region: Americas

Sources: 5

Confidence range: 1.6-2

World ranking: 175

...

Venezuela

Score: 1.9

Region rank: 31

Region: Americas

Sources: 9

Confidence range: 1.7-2.1

World ranking: 172

...

Equatorial Guinea

Score: 1.9

Region rank: 45

Region: Sub-Saharan Africa

Sources: 3

Confidence range: 1.8-2

World ranking: 172

...

Burundi

Score: 1.9

Region rank: 45

Region: Sub-Saharan Africa

Sources: 6

Confidence range: 1.7-2.2

World ranking: 172

...

Libya

Score: 2

Region rank: 17

Region: Middle East and North Africa

Sources: 6

Confidence range: 1.8-2.2

World ranking: 168

...

Democratic Republic of Congo

Score: 2

Region rank: 42

Region: Sub-Saharan Africa

Sources: 5

Confidence range: 1.9-2.2

World ranking: 168

...

Chad

Score: 2

Region rank: 42

Region: Sub-Saharan Africa

Sources: 6

Confidence range: 2-2.1

World ranking: 168

...

Angola

Score: 2

Region rank: 42

Region: Sub-Saharan Africa

Sources: 8

Confidence range: 1.8-2.2

World ranking: 168

...

Yemen

Score: 2.1

Region rank: 16

Region: Middle East and North Africa

Sources: 6

Confidence range: 1.9-2.3

World ranking: 164

...

Kyrgyzstan

Score: 2.1

Region rank: 18

Region: Eastern Europe and Central Europe

Sources: 8

Confidence range: 2-2.3

World ranking: 164

...

Guinea

Score: 2.1

Region rank: 41

Region: Sub-Saharan Africa

Sources: 6

Confidence range: 1.9-2.3

World ranking: 164

...

Cambodia

Score: 2.1

Region rank: 32

Region: Asia-Pacific

Sources: 10

Confidence range: 1.9-2.4

World ranking: 164

...

Zimbabwe

Score: 2.2

Region rank: 35

Region: Sub-Saharan Africa

Sources: 8

Confidence range: 1.6-2.9

World ranking: 154

...

Paraguay

Score: 2.2

Region rank: 30

Region: Americas

Sources: 6

Confidence range: 2-2.5

World ranking: 154

...

Papua New Guinea

Score: 2.2

Region rank: 29

Region: Asia-Pacific

Sources: 6

Confidence range: 1.9.2.4

World ranking: 154

...

Nepal

Score: 2.2

Region rank: 29

Region: Asia-Pacific

Sources: 6

Confidence range: 2.1.2.4

World ranking: 154

...

Laos

Score: 2.2

Region rank: 29

Region: Asia-Pacific

Sources: 4

Confidence range: 2.2.5

World ranking: 154

...

Kenya

Score: 2.2

Region rank: 35

Region: Sub-Saharan Africa

Sources: 9

Confidence range: 2.2.4

World ranking: 154

...

Guinea-Bissau

Score: 2.2

Region rank: 35

Region: Sub-Saharan Africa

Sources: 4

Confidence range: 2.2.4

World ranking: 154

...

Ivory Coast

Score: 2.2

Region rank: 35

Region: Sub-Saharan Africa

Sources: 8

Confidence range: 2.2.5

World ranking: 154

..

Congo Republic

Score: 2.2

Region rank: 35

Region: Sub-Saharan Africa

Sources: 6

Confidence range: 2.2.3

World ranking: 154

...

Central African Republic

Score: 2.2

Region rank: 35

Region: Sub-Saharan Africa

Sources: 4

Confidence range: 2.1-2.3

World ranking: 154