Each year, Transparency International ranks countries on their levels of public sector corruption. The scale ranges from 0 (perceived to be highly corrupt) to 100 (perceived to be very clean).
Overall, two-thirds of the 168 countries on the 2015 index scored below 50.
Denmark took the top spot for the second year running, with North Korea and Somalia the worst performers, scoring just eight points each.
Conflict and war; poor governance; weak public institutions such as the police and judiciary; and a lack of independence in the media characterise the lowest ranked countries.
World leaders linked to 'Panama Papers'
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José Ugaz, Chair of Transparency International, said “The 2015 Corruption Perceptions Index clearly shows that corruption remains a blight around the world. But 2015 was also a year when people again took to the streets to protest corruption. People across the globe sent a strong signal to those in power: it is time to tackle grand corruption.”
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