No. 6: Libya
Score: 15, Rank: 172 out of 177
In our most corrupt countries 2013 list, Libya ranks sixth. The corruption was widespread in Libya under Colonel Muammar Gaddafi, one of the most ruthless dictators in history. Still, Libya is in the midst of post-revolutionary turmoil and it could take years to overcome its heavy heritage of corruption, and to build state institutions and establish the rule of law.