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The ABCs of the CPI: How the Corruption Perceptions Index is calculated

News • 20 December 2021

We answer all your questions about the Corruption Perceptions Index.

Corruption Perceptions Index 2020

Publication • 28 January 2021

The Corruption Perceptions Index scores 180 countries and territories by their perceived levels of public sector corruption, according to experts and business people.

Transparency International Corruption Perceptions Index 2005

News • 18 October 2005

More than two-thirds of the 159 nations surveyed in Transparency International’s 2005 Corruption Perceptions Index (CPI) scored less than 5 out of a clean score of 10, indicating…

2013 Corruption Perceptions Index to be launched 3 December

Press • 13 November 2013

Report cover with a map of the world, banknotes changing hands and a pen in chains.

Corruption Perceptions Index 2021

Publication • 25 January 2022

The Corruption Perceptions Index scores 180 countries and territories by their perceived levels of public sector corruption, according to experts and business people.

Transparency International statement on Egypt’s Corruption Perceptions Index ranking for 2015

Press • 01 August 2016

Corruption Perceptions Index 2011

Publication • 01 December 2011

Media Advisory: Launch: Corruption Perceptions Index 2009

Press • 23 October 2009

Corruption Perceptions Index 2017

News • 21 February 2018

This year’s Corruption Perceptions Index highlights that the majority of countries are making little or no progress in ending corruption, while journalists and activists in…