What is the CPI?
“The 2025 CPI scores 182 countries and territories around the world based on perceptions of public sector corruption. The scores reflect the views of experts and surveys from businesspeople, and not the general public.”
Note the Following:
1.The total number of countries and territories assessed is 182, an increase from 180 in 2024, following the inclusion of Belize (first time in 2025) and Brunei Darussalam (Last qualified in 2020)
2.The Assessments are based on “expert perceptions.”
3.The CPI scope includes only “public sector corruption” and therefore
excludes private sector corruption and IFFs
How is the CPI Calculated?
“The CPI is calculated using data from 13 external data sources, including the World Bank, World Economic Forum, private risk and consulting companies, think tanks and others.
It is a weighted average of the standardized scores from a minimum of 3 out of the 13 different date sources containing specific questions on governance aspects and corruption types.

