Transparency International’s Corruption Perceptions Index (CPI), scores and ranks 180 countries/territories based on how corrupt a country’s public sector is perceived to be by experts and business executives. It is a composite index based upon 13 different sources and gives each country/territory a score between 0 – 100; a low score designates a high perception of corruption, while a high score designates the opposite. The CPI has been calculated since 1995 but the data it produced up until 2011 are not comparable between them due to methodological reasons. Year-over-year comparisons were made possible after the methodological changes that took place in the 2012 CPI. Explore the map below to view the latest CPI scores for each country/territory. To view and interact with more CPI data, visit our Analysis page.