The annual Corruption Perceptions Index (the CPI) ranks 180 countries and territories by their perceived levels of public sector corruption, according to experts and business people. Since its inception in 1995, the CPI has become the leading global indicator of public sector corruption. The CPI is an annual snapshot of the relative degree of corruption by ranking countries and territories from all over the globe. The 2019 CPI draws on 13 surveys and expert assessments to measure public sector corruption, giving a score from zero (highly corrupt) to one hundred (very clean).
