| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
South Africa | 13.36 | 15.32 | 16.83 | 15.7 | 15.86 | 12.85 | 14.81 |
Nigeria | 9.21 | 9.3 | 12.04 | 15.39 | 13.7 | 9.71 | 12.15 |
Egypt | 7.28 | 8.22 | 8.36 | 10.46 | 11.96 | 10.44 | 9.49 |
Algeria | 4.47 | 5.42 | 6.02 | 7.4 | 7.58 | 7.65 | 6.78 |
Kenya | 2.37 | 2.79 | 3.22 | 4.93 | 5.91 | 5.59 | 5.03 |
Ghana | 3.11 | 4.79 | 3.95 | 4.13 | 5.31 | 4.67 | 4.82 |
Morocco | 3.04 | 3.13 | 3.27 | 2.96 | 2.9 | 3.08 | 3.18 |
Tanzania | 1.65 | 2.09 | 3.14 | 3.84 | 4.28 | 3.57 | 3.12 |
Angola | 2.78 | 4.04 | 3.96 | 5.97 | 3.72 | 1.68 | 2.26 |
Ethiopia | 0.89 | 1.53 | 1.87 | 2.92 | 3.44 | 3.21 | 2.66 |