Liberia ranks 138 on the 180-nation corruption index established by the good-governance group Transparency International.

VOA: standard.2009.08.14

But in the rankings index of Transparency International, a Berlin-based lobby, African countries are generally perceived as being the most corrupt.

ECONOMIST: Africa's economy

Let's look at the U.S. Over the past few years, traditional measures of corruption, such as the Corruption Perceptions Index by Transparency International, have placed the U.S. among the least corrupt nations in the world, currently ranking No. 18 among 180 rated countries.

FORBES: Magazine Article

Azerbaijan also gets a poor rating in the corruption index compiled by Transparency International.

BBC: Ex-Soviet elite struggles with 'first lady' role