| Country (%) |
| Benin | 19.87 in 2022 | WHO |
| Equatorial Guinea | 18.02 in 2017 | WHO |
| Angola | 17.72 in 2022 | WHO |
| Central African Republic | 16.22 in 2022 | WHO |
| Madagascar | 11.75 in 2022 | WHO |
| South Sudan | 11.27 in 2022 | WHO |
| Togo | 9.68 in 2022 | WHO |
| Democratic Republic of the Congo | 9.46 in 2022 | WHO |
| Guinea Bissau | 8.3 in 2022 | WHO |
| Haiti | 8.15 in 2022 | WHO |
| Chad | 8.04 in 2022 | WHO |
| Sierra Leone | 7.84 in 2022 | WHO |
| Zambia | 7.35 in 2022 | WHO |
| Gambia | 6.89 in 2022 | WHO |
| Papua New Guinea | 6.36 in 2022 | WHO |
| Kiribati | 6.2 in 2022 | WHO |
| Côte d'Ivoire | 6.09 in 2022 | WHO |
| Uganda | 6 in 2022 | WHO |
| Nepal | 5.91 in 2022 | WHO |
| Mozambique | 5.26 in 2022 | WHO |
| Burkina Faso | 4.69 in 2022 | WHO |
| Ireland | 4.59 in 2022 | WHO |
| Poland | 4.22 in 2022 | WHO |
| Cameroon | 4.04 in 2022 | WHO |
| Kenya | 4.01 in 2022 | WHO |
| Solomon Islands | 3.9 in 2021 | WHO |
| Malawi | 3.83 in 2022 | WHO |
| Liberia | 3.8 in 2022 | WHO |
| Lesotho | 3.69 in 2022 | WHO |
| Micronesia (Federated States of) | 3.44 in 2015 | WHO |
| Senegal | 3.38 in 2022 | WHO |
| Eritrea | 3.01 in 2016 | WHO |
| Rwanda | 2.95 in 2022 | WHO |
| Lao People’s Democratic Republic | 2.94 in 2022 | WHO |
| Marshall Islands | 2.79 in 2022 | WHO |
| Albania | 2.71 in 2022 | WHO |
| Nigeria | 2.69 in 2022 | WHO |
| Congo | 2.52 in 2021 | WHO |
| Somalia | 2.43 in 2022 | WHO |
| Comoros | 2.3 in 2019 | WHO |
| Nicaragua | 2.24 in 2020 | WHO |
| Democratic People's Republic of Korea | 2.21 in 2022 | WHO |
| Pakistan | 2.19 in 2022 | WHO |
| Cuba | 2.14 in 2022 | WHO |
| Zimbabwe | 2.13 in 2022 | WHO |
| Gabon | 2.12 in 2022 | WHO |
| Peru | 1.92 in 2022 | WHO |
| Botswana | 1.9 in 2022 | WHO |
| Guatemala | 1.77 in 2022 | WHO |
| Niger | 1.65 in 2022 | WHO |
| Guinea | 1.59 in 2022 | WHO |
| Tajikistan | 1.53 in 2022 | WHO |
| Myanmar | 1.49 in 2022 | WHO |
| India | 1.46 in 2022 | WHO |
| Sri Lanka | 1.43 in 2022 | WHO |
| Dominican Republic | 1.41 in 2022 | WHO |
| Antigua and Barbuda | 1.39 in 2022 | WHO |
| Ethiopia | 1.37 in 2022 | WHO |
| Saint Vincent and the Grenadines | 1.33 in 2018 | WHO |
| Jamaica | 1.32 in 2022 | WHO |
| Burundi | 1.3 in 2022 | WHO |
| Morocco | 1.24 in 2022 | WHO |
| Yemen | 1.19 in 2022 | WHO |
| China | 1.17 in 2022 | WHO |
| Venezuela (Bolivarian Republic of) | 1.12 in 2015 | WHO |
| Afghanistan | 1 in 2022 | WHO |
| Algeria | 1 in 2022 | WHO |
| Andorra | 1 in 2022 | WHO |
| Argentina | 1 in 2022 | WHO |
| Armenia | 1 in 2022 | WHO |
| Australia | 1 in 2022 | WHO |
| Austria | 1 in 2022 | WHO |
| Azerbaijan | 1 in 2022 | WHO |
| Bangladesh | 1 in 2022 | WHO |
| Belarus | 1 in 2022 | WHO |
| Belgium | 1 in 2022 | WHO |
| Belize | 1 in 2022 | WHO |
| Bhutan | 1 in 2022 | WHO |
| Bolivia | 1 in 2022 | WHO |
| Bosnia and Herzegovina | 1 in 2022 | WHO |
| Brazil | 1 in 2022 | WHO |
| Brunei Darussalam | 1 in 2020 | WHO |
| Bulgaria | 1 in 2022 | WHO |
| Cabo Verde | 1 in 2022 | WHO |
| Cambodia | 1 in 2022 | WHO |
| Canada | 1 in 2022 | WHO |
| Chile | 1 in 2022 | WHO |
| Colombia | 1 in 2022 | WHO |
| Costa Rica | 1 in 2022 | WHO |
| Croatia | 1 in 2022 | WHO |
| Cyprus | 1 in 2022 | WHO |
| Czech Republic | 1 in 2022 | WHO |
| Denmark | 1 in 2022 | WHO |
| Djibouti | 1 in 2022 | WHO |
| Ecuador | 1 in 2022 | WHO |
| Egypt | 1 in 2022 | WHO |
| El Salvador | 1 in 2022 | WHO |
| Estonia | 1 in 2022 | WHO |
| Eswatini | 1 in 2022 | WHO |
| Falkland Islands | 1 in 2022 | WHO |
| Fiji | 1 in 2022 | WHO |
| Finland | 1 in 2022 | WHO |
| France | 1 in 2022 | WHO |
| Georgia | 1 in 2022 | WHO |
| Germany | 1 in 2022 | WHO |
| Ghana | 1 in 2022 | WHO |
| Greece | 1 in 2022 | WHO |
| Guyana | 1 in 2022 | WHO |
| Honduras | 1 in 2022 | WHO |
| Hong Kong | 1 in 2022 | WHO |
| Hungary | 1 in 2022 | WHO |
| Iceland | 1 in 2022 | WHO |
| Indonesia | 1 in 2022 | WHO |
| Iran | 1 in 2022 | WHO |
| Iraq | 1 in 2022 | WHO |
| Israel | 1 in 2022 | WHO |
| Italy | 1 in 2017 | WHO |
| Jordan | 1 in 2022 | WHO |
| Kazakhstan | 1 in 2022 | WHO |
| Kuwait | 1 in 2022 | WHO |
| Kyrgyzstan | 1 in 2022 | WHO |
| Latvia | 1 in 2022 | WHO |
| Lithuania | 1 in 2022 | WHO |
| Luxembourg | 1 in 2022 | WHO |
| Macau | 1 in 2022 | WHO |
| Malaysia | 1 in 2022 | WHO |
| Maldives | 1 in 2022 | WHO |
| Mali | 1 in 2022 | WHO |
| Malta | 1 in 2022 | WHO |
| Mauritania | 1 in 2022 | WHO |
| Mauritius | 1 in 2022 | WHO |
| Mexico | 1 in 2022 | WHO |
| Monaco | 1 in 2022 | WHO |
| Mongolia | 1 in 2022 | WHO |
| Montenegro | 1 in 2022 | WHO |
| Namibia | 1 in 2022 | WHO |
| Nauru | 1 in 2020 | WHO |
| Netherlands | 1 in 2022 | WHO |
| New Zealand | 1 in 2022 | WHO |
| North Macedonia | 1 in 2022 | WHO |
| Norway | 1 in 2022 | WHO |
| Oman | 1 in 2022 | WHO |
| Palau | 1 in 2022 | WHO |
| Palestine | 1 in 2022 | WHO |
| Panama | 1 in 2022 | WHO |
| Paraguay | 1 in 2022 | WHO |
| Philippines | 1 in 2022 | WHO |
| Portugal | 1 in 2022 | WHO |
| Republic of Moldova | 1 in 2022 | WHO |
| Romania | 1 in 2022 | WHO |
| Russian Federation | 1 in 2022 | WHO |
| Saint Lucia | 1 in 2022 | WHO |
| Samoa | 1 in 2022 | WHO |
| Sao Tome and Principe | 1 in 2022 | WHO |
| Saudi Arabia | 1 in 2022 | WHO |
| Serbia | 1 in 2022 | WHO |
| Singapore | 1 in 2022 | WHO |
| Slovakia | 1 in 2022 | WHO |
| Slovenia | 1 in 2017 | WHO |
| South Africa | 1 in 2022 | WHO |
| Spain | 1 in 2022 | WHO |
| Sudan | 1 in 2022 | WHO |
| Suriname | 1 in 2022 | WHO |
| Sweden | 1 in 2022 | WHO |
| Switzerland | 1 in 2022 | WHO |
| Syrian Arab Republic | 1 in 2022 | WHO |
| Thailand | 1 in 2022 | WHO |
| Timor-Leste | 1 in 2022 | WHO |
| Tonga | 1 in 2022 | WHO |
| Tunisia | 1 in 2022 | WHO |
| Turkey | 1 in 2022 | WHO |
| Turkmenistan | 1 in 2022 | WHO |
| Tuvalu | 1 in 2022 | WHO |
| Ukraine | 1 in 2022 | WHO |
| United Arab Emirates | 1 in 2022 | WHO |
| United Kingdom | 1 in 2022 | WHO |
| United Republic of Tanzania | 1 in 2022 | WHO |
| United States of America | 1 in 2022 | WHO |
| Uruguay | 1 in 2022 | WHO |
| Uzbekistan | 1 in 2022 | WHO |
| Vanuatu | 1 in 2022 | WHO |
| Viet Nam | 1 in 2022 | WHO |
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