
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