| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Papua New Guinea | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||||||||||
| Solomon Islands | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |||||||||||
| Timor-Leste | 0.1 | 0.1 | 0.6 | 0.7 | 0.7 | 0.8 | 0.7 | 0.8 | 0.8 | ||||||||
| Haiti | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.2 | |||||||||||
| Yemen | 0.0 | 0.0 | 0.3 | ||||||||||||||
| Afghanistan | 0.1 | 0.1 | 0.2 | 0.3 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.3 | 0.2 | 0.3 | ||||
| Burundi | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Central African Republic | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | ||||||||||||
| Chad | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Comoros | 0.1 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | |||||||||||
| Côte d'Ivoire | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |||||||
| Democratic Republic of the Congo | 0.0 | 0.1 | 0.1 | 0.4 | 0.2 | 0.2 | 0.2 | ||||||||||
| Guinea | 0.0 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.2 | 0.0 | ||||||||
| Guinea Bissau | 0.1 | 0.1 | 0.2 | 0.1 | 0.3 | 0.2 | 0.2 | 0.2 | |||||||||
| Liberia | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | |||||||
| Sao Tome and Principe | 0.2 | 0.5 | 0.3 | 0.5 | |||||||||||||
| Sierra Leone | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.0 | ||||||||||
| Somalia | 0.0 | 0.0 | |||||||||||||||
| South Sudan | 0.0 | 0.0 | 0.0 | ||||||||||||||
| Togo | 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |