Datasets:
| Year,South Africa,Ghana,Uzbekistan | |
| 1960,76.39,167.581,55.412 | |
| 1964,78.53,152.932,48.29 | |
| 1969,86.625,136.094,45.494 | |
| 1973,89.686,136.713,50.702 | |
| 1978,93.403,122.213,36.038 | |
| 1982,98.365,120.066,32.839 | |
| 1987,95.483,114.868,38.037 | |
| 1991,91.667,110.001,48.885 | |
| 1996,78.464,89.26,54.433 | |
| 2000,67.416,84.342,21.589 | |
| 2005,47.844,73.636,9.744 | |
| 2009,57.121,71.37,18.443 | |
| 2014,70.224,72.556,26.314 | |
| 2018,51.417,66.515,21.987 | |
| 2023,51.56,58.238,34.081 | |