Russia ranked 133 out of 174 in Transparency International's 2012 Corruption Perceptions Index.

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Transparency International's 2012 Corruption Perceptions Index gathered views on 176 countries worldwide.

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Corruption is also prevalent, with Angola ranked 157th out of 176 countries and territories on Transparency International's 2012 Corruption Perceptions Index.

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Transparency International - an organization tackling corruption -- ranked Croatia below Rwanda, Jordan and Cuba in its Corruption Perceptions Index for 2012.

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Corruption further exacerbates discontent among the population, with Angola ranked 168th out of 183 countries on Transparency International's 2011 Corruption Perceptions Index.

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Angola ranked 168th out of 183 countries on Transparency International's 2011 Corruption Perceptions Index, and was 148th out of 187 countries in the U.N.

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Transparency International recently ranked Angola a lowly 168 out of 182 countries in its " Corruption Perceptions Index" but Dos Santos says that the fund will be beholden to international best practices, and transparent.

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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.

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Transparency International's corruption-perceptions index suggests that corruption is rife: in 2010, on a scale from one (the worst) to ten, Western Europe's five most populous countries received an average score of 6.5, whereas the three most populous countries in the Middle East averaged 3.2 (Turkey scored 4.4, Egypt 3.1 and Iran 2.2).

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