According to Transparency International’s 2015 Corruption Perceptions Index, Denmark is perceived to have the least corrupt public sector in the world.
North Korea and Somalia are the worst performers out of 168 countries.
South Africa ranked 61st, scoring 44 on a scale where 0 is perceived to be highly corrupt and 100 perceived to be very clean. (http://bit.ly/1Vhq5cA, http://bit.ly/1SrVt11)