| Value | Category |
|---|---|
| -99 | Refused to answer |
| -88 | Not provided |
| -77 | Not applicable |
| -66 | Do not know |
| 1 | Angola |
| 2 | Botswana |
| 3 | Burundi |
| 4 | Congo, Democratic Republic of |
| 5 | Gambia, The |
| 6 | Guinea-Bissau |
| 7 | Guinea-Conakry |
| 8 | Mauritania |
| 9 | Namibia |
| 10 | Rwanda |
| 11 | Swaziland |
| 12 | Tanzania |
| 13 | Uganda |