| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Mozambique | 2.92 | 2022 |
| 2 | South Africa | 2.66 | 2022 |
| 3 | Eswatini | 2.56 | 2022 |
| 4 | Equatorial Guinea | 2.24 | 2022 |
| 5 | Lesotho | 2 | 2022 |
| 6 | Namibia | 1.81 | 2022 |
| 7 | Zambia | 1.43 | 2022 |
| 8 | Congo, Rep. | 1.37 | 2022 |
| 9 | Botswana | 1.36 | 2022 |
| 10 | Central African Republic | 1.3 | 2022 |
| 11 | St. Kitts and Nevis | 1.29 | 2022 |
| 12 | Panama | 1.24 | 2022 |
| 13 | Philippines | 0.96 | 2022 |
| 14 | Uganda | 0.86 | 2022 |
| 15 | Belize | 0.83 | 2022 |
| 16 | Thailand | 0.81 | 2022 |
| 17 | Barbados | 0.79 | 2022 |
| 18 | Myanmar | 0.76 | 2022 |
| 19 | Zimbabwe | 0.75 | 2022 |
| 20 | Jamaica | 0.73 | 2022 |
| 21 | Chile | 0.72 | 2022 |
| 22 | Dominican Republic | 0.68 | 2022 |
| 23 | Cuba | 0.66 | 2022 |
| 24 | South Sudan | 0.65 | 2022 |
| 25 | Mexico | 0.64 | 2022 |
| 26 | Moldova | 0.57 | 2022 |
| 27 | Costa Rica | 0.56 | 2022 |
| 28 | Papua New Guinea | 0.48 | 2022 |
| 29 | Suriname | 0.47 | 2022 |
| 30 | Lao PDR | 0.42 | 2022 |
| 31 | Guinea-Bissau | 0.4 | 2022 |
| 32 | Tanzania | 0.39 | 2022 |
| 33 | Haiti | 0.38 | 2022 |
| 34 | Sierra Leone | 0.38 | 2022 |
| 35 | Uruguay | 0.38 | 2022 |
| 36 | Guyana | 0.36 | 2022 |
| 37 | Bahamas, The | 0.34 | 2022 |
| 38 | Cambodia | 0.33 | 2022 |
| 39 | Gabon | 0.32 | 2022 |
| 40 | Kenya | 0.32 | 2022 |
| 41 | Ecuador | 0.31 | 2022 |
| 42 | Guinea | 0.31 | 2022 |
| 43 | Indonesia | 0.31 | 2022 |
| 44 | Angola | 0.29 | 2022 |
| 45 | El Salvador | 0.29 | 2022 |
| 46 | Ghana | 0.27 | 2022 |
| 47 | Armenia | 0.26 | 2022 |
| 48 | Malawi | 0.26 | 2022 |
| 49 | Malta | 0.26 | 2022 |
| 50 | Viet Nam | 0.26 | 2022 |
| 51 | Nicaragua | 0.25 | 2022 |
| 52 | Gambia, The | 0.23 | 2022 |
| 53 | Liberia | 0.23 | 2022 |
| 54 | Mali | 0.22 | 2022 |
| 55 | Cameroon | 0.2 | 2022 |
| 56 | Argentina | 0.19 | 2022 |
| 57 | Chad | 0.18 | 2022 |
| 58 | Bulgaria | 0.17 | 2022 |
| 59 | Fiji | 0.17 | 2022 |
| 60 | Colombia | 0.16 | 2022 |
| 61 | Malaysia | 0.16 | 2022 |
| 62 | Belarus | 0.15 | 2022 |
| 63 | Togo | 0.15 | 2022 |
| 64 | Latvia | 0.14 | 2022 |
| 65 | Montenegro | 0.14 | 2022 |
| 66 | Cabo Verde | 0.13 | 2022 |
| 67 | Guatemala | 0.13 | 2022 |
| 68 | Peru | 0.13 | 2022 |
| 69 | Rwanda | 0.13 | 2022 |
| 70 | Bolivia | 0.12 | 2022 |
| 71 | France | 0.12 | 2022 |
| 72 | Lithuania | 0.11 | 2022 |
| 73 | Georgia | 0.1 | 2022 |
| 74 | Cote d'Ivoire | 0.09 | 2022 |
| 75 | Madagascar | 0.09 | 2022 |
| 76 | Serbia | 0.09 | 2022 |
| 77 | Sudan | 0.09 | 2022 |
| 78 | Azerbaijan | 0.08 | 2022 |
| 79 | Egypt, Arab Rep. | 0.08 | 2022 |
| 80 | Greece | 0.08 | 2022 |
| 81 | Luxembourg | 0.08 | 2022 |
| 82 | Saudi Arabia | 0.08 | 2022 |
| 83 | Benin | 0.07 | 2022 |
| 84 | Congo, Dem. Rep. | 0.07 | 2022 |
| 85 | Czechia | 0.07 | 2022 |
| 86 | Grenada | 0.07 | 2022 |
| 87 | Burundi | 0.06 | 2022 |
| 88 | Estonia | 0.06 | 2022 |
| 89 | Kyrgyz Republic | 0.06 | 2022 |
| 90 | Mauritania | 0.06 | 2022 |
| 91 | Afghanistan | 0.05 | 2022 |
| 92 | Algeria | 0.05 | 2022 |
| 93 | Burkina Faso | 0.05 | 2022 |
| 94 | Ethiopia | 0.05 | 2022 |
| 95 | Iran, Islamic Rep. | 0.05 | 2022 |
| 96 | Belgium | 0.04 | 2022 |
| 97 | Bhutan | 0.04 | 2022 |
| 98 | Eritrea | 0.04 | 2022 |
| 99 | Honduras | 0.04 | 2022 |
| 100 | Iceland | 0.04 | 2022 |
| 101 | Senegal | 0.04 | 2022 |
| 102 | Tajikistan | 0.04 | 2022 |
| 103 | Timor-Leste | 0.04 | 2022 |
| 104 | Yemen, Rep. | 0.04 | 2022 |
| 105 | Albania | 0.03 | 2022 |
| 106 | Italy | 0.03 | 2022 |
| 107 | Niger | 0.03 | 2022 |
| 108 | Oman | 0.03 | 2022 |
| 109 | Qatar | 0.03 | 2022 |
| 110 | Romania | 0.03 | 2022 |
| 111 | Slovak Republic | 0.03 | 2022 |
| 112 | Bangladesh | 0.01 | 2022 |
| 113 | Comoros | 0.01 | 2022 |
| 114 | Iraq | 0.01 | 2022 |
| 115 | Jordan | 0.01 | 2022 |
| 116 | Maldives | 0.01 | 2022 |
| 117 | Mongolia | 0.01 | 2022 |
| 118 | Morocco | 0.01 | 2022 |
| 119 | Nepal | 0.01 | 2022 |
| 120 | Sao Tome and Principe | 0.01 | 2022 |
| 121 | Sri Lanka | 0.01 | 2022 |
| 122 | Syrian Arab Republic | 0.01 | 2022 |