The Corruption Perceptions Index 2013 ranks 177 countries and territories based on perceived levels of public sector corruption. Nearly 70% of countries score below 50, indicating a serious corruption problem. The index reveals that corruption is a major issue around the world, with no country achieving a perfect score. Regional breakdowns show that Eastern Europe/Central Asia, Middle East/North Africa, and Sub-Saharan Africa have the highest percentages of countries perceived as highly corrupt.