Transparency International lists Corruption Perception Index of countries.
The world's ten most corrupt countries:
1. Somalia
2. Afghanistan
3. Myanmar
4. Sudan
5. Iraq
6. Chad
7. Uzbekistan
8. Turkmenistan
9. Iran
10. Haiti
The world's ten least corrupt countries:
1. New Zealand
2. Denmark
3. Singapore
4. Sweden
5. Switzerland
6. Finland
7. Netherlands
8. Australia
9. Canada
10. Iceland …
19. United States