| Country Usage (%) |
| Chile | 99 in 2022 | WHO |
| Palau | 99 in 2022 | WHO |
| Uruguay | 99 in 2022 | WHO |
| Ecuador | 97.09 in 2022 | WHO |
| Tonga | 94.1 in 2022 | WHO |
| Honduras | 93.54 in 2022 | WHO |
| Brazil | 92.06 in 2022 | WHO |
| Dominican Republic | 91.41 in 2022 | WHO |
| Panama | 90.23 in 2022 | WHO |
| Samoa | 90.19 in 2022 | WHO |
| Cuba | 89.12 in 2022 | WHO |
| Guyana | 87.37 in 2022 | WHO |
| Paraguay | 83.33 in 2022 | WHO |
| Suriname | 83.28 in 2022 | WHO |
| Colombia | 81.22 in 2022 | WHO |
| Costa Rica | 80.39 in 2022 | WHO |
| Bolivia | 79.77 in 2022 | WHO |
| Saint Lucia | 79.5 in 2022 | WHO |
| El Salvador | 78.57 in 2022 | WHO |
| Haiti | 78.23 in 2022 | WHO |
| Saint Vincent and the Grenadines | 73.67 in 2018 | WHO |
| Mexico | 70.27 in 2022 | WHO |
| Tuvalu | 69.25 in 2022 | WHO |
| Nicaragua | 67.3 in 2020 | WHO |
| Guatemala | 65.54 in 2022 | WHO |
| Peru | 61.82 in 2022 | WHO |
| Venezuela (Bolivarian Republic of) | 61.29 in 2015 | WHO |
| Belize | 53.5 in 2015 | WHO |
| Fiji | 52.52 in 2022 | WHO |
| Kiribati | 48.73 in 2022 | WHO |
| Papua New Guinea | 46.22 in 2022 | WHO |
| Jamaica | 44.83 in 2022 | WHO |
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