See also the CPI 2009 Interactive Map.
The Corruption Perception Index (CPI) published by Transparency International measures the perceived levels of public-sector corruption in a given country. It is a composite index drawing on different expert and business surveys. The scale is from zero (highly corrupt) to ten (highly clean).
Note: It is not possible to make valid comparisons of corruption over time using the aggregated data shown here.
The interactive map was made using the free StatPlanet software.