But the U.S. is in good company. The Czech Republic, Greece, Hungary, Italy, Madagascar and Niger also received lower scores than they did last year. Transparency International explains the declining scores of some nations -- such as the United States -- with the recent global financial crisis. For many countries, it says, the crisis was "precipitated by transparency and integrity deficits."
The CPI uses 13 different expert and business surveys, like the African Development Bank, Global Insight and IMD, to compute its numbers. Of the 178 countries surveyed, nearly three quarters scored lower than 5. The most corrupt countries were also the poorest, and are mostly ruled either by dictators or by unstable governments.
The report did contain some good news: Bhutan, Chile, Ecuador, Macedonia, Gambia, Haiti, Jamaica, Kuwait and Qatar all improved their scores.
The 10 Most (and 10 Least)
Score: 1.1
Despite experiencing civil unrest, Somalia has maintained a healthy informal economy, based mainly on livestock, remittance/money transfer companies, and telecommunications.
2. Myanmar
Score: 1.4
Previously known as Burma, this southeast Asian has suffered through decades of military rule, civil war, and catastrophic economic management. Most of its citizens are impoverished, but many remain hopeful that a new constitution introduced this year will usher in change.
3. Afghanistan
Score: 1.4
Since the late 1970s, Afghanistan has been plagued by civil war and foreign occupation. It still struggles against Taliban insurgents.
4. Republic of Equatorial Guinea
Score: 1.5
The current government of Iraq is less than a decade old. The survival of the government is still dependent on the US occupying force.