| Country Usage (%) |
| Afghanistan | 16.58 in 2022 | WHO |
| Albania | 75.68 in 2022 | WHO |
| Algeria | 59.54 in 2022 | WHO |
| Andorra | 99 in 2022 | WHO |
| Angola | 8.14 in 2022 | WHO |
| Antigua and Barbuda | 97.89 in 2022 | WHO |
| Argentina | 82.04 in 2016 | WHO |
| Armenia | 99 in 2022 | WHO |
| Australia | 86.81 in 2019 | WHO |
| Azerbaijan | 85.61 in 2022 | WHO |
| Bangladesh | 3.1 in 2022 | WHO |
| Belarus | 89.01 in 2022 | WHO |
| Belgium | 99 in 2022 | WHO |
| Belize | 79.26 in 2022 | WHO |
| Benin | 29.9 in 2022 | WHO |
| Bhutan | 99 in 2022 | WHO |
| Bolivia | 21.31 in 2022 | WHO |
| Bosnia and Herzegovina | 92.84 in 2018 | WHO |
| Botswana | 77.38 in 2022 | WHO |
| Brazil | 90.22 in 2022 | WHO |
| Brunei Darussalam | 99 in 2015 | WHO |
| Bulgaria | 97.3 in 2022 | WHO |
| Burkina Faso | 10.26 in 2022 | WHO |
| Burundi | 29.88 in 2022 | WHO |
| Cabo Verde | 76.63 in 2022 | WHO |
| Cambodia | 20.06 in 2022 | WHO |
| Cameroon | 16.67 in 2022 | WHO |
| Canada | 99 in 2022 | WHO |
| Central African Republic | 1 in 2022 | WHO |
| Chad | 7.36 in 2022 | WHO |
| Chile | 99 in 2022 | WHO |
| China | 71.93 in 2022 | WHO |
| Colombia | 60.07 in 2022 | WHO |
| Comoros | 52.66 in 2019 | WHO |
| Congo | 10.54 in 2021 | WHO |
| Costa Rica | 99 in 2022 | WHO |
| Côte d'Ivoire | 29.11 in 2022 | WHO |
| Croatia | 99 in 2017 | WHO |
| Cuba | 56.74 in 2022 | WHO |
| Cyprus | 99 in 2022 | WHO |
| Czech Republic | 99 in 2022 | WHO |
| Democratic People's Republic of Korea | 50.37 in 2022 | WHO |
| Democratic Republic of the Congo | 7.82 in 2022 | WHO |
| Denmark | 99 in 2022 | WHO |
| Djibouti | 26.26 in 2022 | WHO |
| Dominican Republic | 65.56 in 2022 | WHO |
| Ecuador | 75.4 in 2022 | WHO |
| Egypt | 98.71 in 2022 | WHO |
| El Salvador | 83.68 in 2022 | WHO |
| Equatorial Guinea | 22.25 in 2017 | WHO |
| Eritrea | 40.82 in 2016 | WHO |
| Estonia | 99 in 2022 | WHO |
| Eswatini | 51.14 in 2022 | WHO |
| Ethiopia | 31.98 in 2022 | WHO |
| Falkland Islands | 56.35 in 2020 | WHO |
| Fiji | 76.54 in 2022 | WHO |
| Finland | 99 in 2022 | WHO |
| France | 99 in 2022 | WHO |
| Gabon | 29.61 in 2022 | WHO |
| Gambia | 71.32 in 2022 | WHO |
| Georgia | 65.62 in 2022 | WHO |
| Germany | 99 in 2022 | WHO |
| Ghana | 33.88 in 2022 | WHO |
| Greece | 99 in 2022 | WHO |
| Guatemala | 65.45 in 2022 | WHO |
| Guinea | 8.11 in 2022 | WHO |
| Guinea Bissau | 32.5 in 2022 | WHO |
| Guyana | 64.86 in 2022 | WHO |
| Haiti | 24.11 in 2022 | WHO |
| Honduras | 85.79 in 2022 | WHO |
| Hong Kong Urban | 1 timeseries | |
| Hungary | 99 in 2022 | WHO |
| Iceland | 99 in 2022 | WHO |
| India | 33.23 in 2022 | WHO |
| Indonesia | 13.87 in 2022 | WHO |
| Iran | 97.06 in 2022 | WHO |
| Iraq | 71.99 in 2022 | WHO |
| Ireland | 96.97 in 2022 | WHO |
| Israel | 99 in 2022 | WHO |
| Italy | 97.1 in 2016 | WHO |
| Jamaica | 73.05 in 2022 | WHO |
| Jordan | 79.75 in 2022 | WHO |
| Kazakhstan | 63.33 in 2021 | WHO |
| Kenya | 22.03 in 2022 | WHO |
| Kiribati | 14.91 in 2022 | WHO |
| Kyrgyzstan | 89.86 in 2022 | WHO |
| Lao People’s Democratic Republic | 13.62 in 2022 | WHO |
| Latvia | 88.26 in 2022 | WHO |
| Lesotho | 64.4 in 2022 | WHO |
| Liberia | 1 in 2022 | WHO |
| Lithuania | 87.05 in 2022 | WHO |
| Luxembourg | 97.19 in 2022 | WHO |
| Macau Urban | 1 timeseries | |
| Madagascar | 16.43 in 2022 | WHO |
| Malawi | 8.33 in 2022 | WHO |
| Malaysia | 82.88 in 2022 | WHO |
| Maldives | 19.09 in 2022 | WHO |
| Mali | 27.47 in 2022 | WHO |
| Malta | 99 in 2022 | WHO |
| Marshall Islands | 7.03 in 2022 | WHO |
| Mauritania | 43.01 in 2022 | WHO |
| Mauritius | 99 in 2022 | WHO |
| Mexico | 92.02 in 2022 | WHO |
| Micronesia (Federated States of) | 35.85 in 2014 | WHO |
| Monaco Urban | 1 timeseries | |
| Mongolia | 7.53 in 2022 | WHO |
| Montenegro | 75.47 in 2022 | WHO |
| Morocco | 52.83 in 2022 | WHO |
| Mozambique | 19.87 in 2022 | WHO |
| Myanmar | 18.23 in 2022 | WHO |
| Namibia | 68.02 in 2022 | WHO |
| Nauru Urban | 1 timeseries | |
| Nepal | 49.56 in 2022 | WHO |
| Netherlands | 99 in 2022 | WHO |
| New Zealand | 99 in 2022 | WHO |
| Nicaragua | 32.67 in 2020 | WHO |
| Niger | 30.63 in 2022 | WHO |
| Nigeria | 8.8 in 2022 | WHO |
| North Macedonia | 82 in 2022 | WHO |
| Norway | 99 in 2022 | WHO |
| Oman | 84.47 in 2022 | WHO |
| Pakistan | 17.04 in 2022 | WHO |
| Palau | 29.49 in 2022 | WHO |
| Palestine | 88.99 in 2022 | WHO |
| Panama | 81.07 in 2022 | WHO |
| Papua New Guinea | 10.1 in 2022 | WHO |
| Paraguay | 99 in 2022 | WHO |
| Peru | 79.85 in 2022 | WHO |
| Philippines | 52.84 in 2022 | WHO |
| Poland | 82.21 in 2022 | WHO |
| Portugal | 95.64 in 2022 | WHO |
| Republic of Moldova | 63.43 in 2022 | WHO |
| Romania | 34.92 in 2018 | WHO |
| Russian Federation | 85.36 in 2022 | WHO |
| Rwanda | 37.64 in 2022 | WHO |
| Saint Lucia | 96.29 in 2022 | WHO |
| Saint Vincent and the Grenadines | 89.25 in 2018 | WHO |
| Samoa | 87.22 in 2022 | WHO |
| Sao Tome and Principe | 86.87 in 2022 | WHO |
| Saudi Arabia | 83.6 in 2022 | WHO |
| Senegal | 66.99 in 2022 | WHO |
| Serbia | 91.14 in 2022 | WHO |
| Sierra Leone | 12.76 in 2022 | WHO |
| Singapore Urban | 1 timeseries | |
| Slovakia | 99 in 2022 | WHO |
| Slovenia | 98.67 in 2017 | WHO |
| Solomon Islands | 37.53 in 2022 | WHO |
| Somalia | 22.94 in 2022 | WHO |
| South Africa | 74.08 in 2022 | WHO |
| South Sudan | 2.9 in 2022 | WHO |
| Spain | 99 in 2022 | WHO |
| Sri Lanka | 45.7 in 2022 | WHO |
| Sudan | 46.5 in 2022 | WHO |
| Suriname | 63.76 in 2022 | WHO |
| Sweden | 77.29 in 2022 | WHO |
| Switzerland | 99 in 2022 | WHO |
| Syrian Arab Republic | 70.89 in 2022 | WHO |
| Tajikistan | 55.52 in 2022 | WHO |
| Thailand | 78.63 in 2022 | WHO |
| Timor-Leste | 65.89 in 2022 | WHO |
| Togo | 20.64 in 2022 | WHO |
| Tonga | 98.32 in 2022 | WHO |
| Tunisia | 80.17 in 2022 | WHO |
| Turkey | 85.61 in 2022 | WHO |
| Turkmenistan | 21.9 in 2022 | WHO |
| Tuvalu | 99 in 2022 | WHO |
| Uganda | 13.1 in 2022 | WHO |
| Ukraine | 30.89 in 2022 | WHO |
| United Arab Emirates | 99 in 2022 | WHO |
| United Kingdom | 99 in 2022 | WHO |
| United Republic of Tanzania | 28.2 in 2022 | WHO |
| United States of America | 94.78 in 2021 | WHO |
| Uruguay | 99 in 2022 | WHO |
| Uzbekistan | 60.46 in 2022 | WHO |
| Vanuatu | 39.66 in 2022 | WHO |
| Venezuela (Bolivarian Republic of) | 52 in 2015 | WHO |
| Viet Nam | 31.27 in 2022 | WHO |
| Yemen | 44.13 in 2022 | WHO |
| Zambia | 5.45 in 2022 | WHO |
| Zimbabwe | 8.55 in 2022 | WHO |
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