Sample sizes of GATS implementing sub-Saharan African countries
| Country | Survey year | GATS sample (n) | Population aged 15 and older in millions (N) |
| Botswana | 2017 | 4643 | 1.45 |
| Cameroon | 2013 | 5271 | 12.48 |
| Ethiopia | 2016 | 10 150 | 60.38 |
| Kenya | 2014 | 4408 | 27.12 |
| Nigeria | 2012 | 9765 | 93.33 |
| Senegal | 2015 | 4347 | 8.24 |
| Tanzania | 2018 | 4797 | 31.48 |
| Uganda | 2013 | 8508 | 18.38 |
GATS, Global Adult Tobacco Survey.