Based on expert opinion from around the world, the Corruption Perceptions Index measures the perceived levels of public sector corruption worldwide.
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This is a summary report of the key findings from the ninth edition of Transparency International’s Global Corruption Barometer series – the world's largest survey asking citizens about their direct personal experience of bribery in their daily lives, their perceptions of corruption challenges in their own countries, and their willingness to act against corruption. The results of this latest edition of the survey have been published via a series of regional reports. This summary brings together those reports and covers 119 countries, territories and regions around the globe. It is based on interviews with 162,136 adults from March 2014 until January 2017 and it identifies the key differences between the regions and key results by place.