President Jacob Zuma plays chess against Ybella Xulu, at a tournament held at Nkandla in 2013. Nkandla has become symbolic of Zuma's chess moves against corruption allegations. (Photo/ Flickr/GCIS)

Africa In The 2016 Corruption Perceptions Index: Some Gains, Some Slides, And Much Stagnation

Cape Verde and Sao Tome and Principe are the most improved African countries on the Corruption Perceptions index, but several others, including South Africa, Nigeria, Tanzania and Kenya failed to improve their scores