| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Palau | 13.8 | 2022 |
| 2 | Liberia | 13.76 | 2022 |
| 3 | New Caledonia | 13.47 | 2022 |
| 4 | Iceland | 11.93 | 2022 |
| 5 | Marshall Islands | 10.96 | 2022 |
| 6 | Uganda | 9.86 | 2022 |
| 7 | Bhutan | 9.04 | 2022 |
| 8 | Lesotho | 9.02 | 2022 |
| 9 | Madagascar | 9 | 2022 |
| 10 | Central African Republic | 8.31 | 2022 |
| 11 | Burundi | 7.4 | 2022 |
| 12 | Sint Maarten (Dutch part) | 7.12 | 2022 |
| 13 | Guinea-Bissau | 6.95 | 2022 |
| 14 | Kiribati | 6.82 | 2022 |
| 15 | Nauru | 6.79 | 2022 |
| 16 | Micronesia, Fed. Sts. | 6.62 | 2022 |
| 17 | Somalia | 6.51 | 2022 |
| 18 | Papua New Guinea | 6.47 | 2022 |
| 19 | Canada | 6.44 | 2022 |
| 20 | Mali | 6.26 | 2022 |
| 21 | Turks and Caicos Islands | 5.95 | 2022 |
| 22 | Equatorial Guinea | 5.9 | 2022 |
| 23 | Bosnia and Herzegovina | 5.53 | 2022 |
| 24 | Burkina Faso | 5.4 | 2022 |
| 25 | Samoa | 5.4 | 2022 |
| 26 | Sierra Leone | 5.29 | 2022 |
| 27 | Solomon Islands | 5.18 | 2022 |
| 28 | Korea, Rep. | 5.11 | 2022 |
| 29 | Vanuatu | 5.04 | 2022 |
| 30 | Serbia | 5.02 | 2022 |
| 31 | Guinea | 4.95 | 2022 |
| 32 | Finland | 4.82 | 2022 |
| 33 | Bulgaria | 4.72 | 2022 |
| 34 | Kyrgyz Republic | 4.69 | 2022 |
| 35 | Moldova | 4.69 | 2022 |
| 36 | Lao PDR | 4.51 | 2022 |
| 37 | Antigua and Barbuda | 4.48 | 2022 |
| 38 | Azerbaijan | 4.4 | 2022 |
| 39 | Comoros | 4.3 | 2022 |
| 40 | Belize | 4.29 | 2022 |
| 41 | Chad | 4.2 | 2022 |
| 42 | United States | 4.17 | 2022 |
| 43 | Australia | 4.12 | 2022 |
| 44 | Estonia | 4.12 | 2022 |
| 45 | Tonga | 4.03 | 2022 |
| 46 | Czechia | 3.98 | 2022 |
| 47 | Eswatini | 3.89 | 2022 |
| 48 | Brazil | 3.87 | 2022 |
| 49 | Slovak Republic | 3.83 | 2022 |
| 50 | Barbados | 3.76 | 2022 |
| 51 | Mauritania | 3.74 | 2022 |
| 52 | Tunisia | 3.7 | 2022 |
| 53 | Georgia | 3.64 | 2022 |
| 54 | Sao Tome and Principe | 3.64 | 2022 |
| 55 | New Zealand | 3.52 | 2022 |
| 56 | Rwanda | 3.51 | 2022 |
| 57 | Montenegro | 3.43 | 2022 |
| 58 | Belgium | 3.4 | 2022 |
| 59 | Malawi | 3.33 | 2022 |
| 60 | Argentina | 3.29 | 2022 |
| 61 | Sweden | 3.24 | 2022 |
| 62 | North Macedonia | 3.22 | 2022 |
| 63 | Norway | 3.21 | 2022 |
| 64 | Chile | 3.19 | 2022 |
| 65 | Gambia, The | 3.16 | 2022 |
| 66 | Japan | 3.15 | 2022 |
| 67 | Slovenia | 3.15 | 2022 |
| 68 | Poland | 3.13 | 2022 |
| 69 | Hungary | 3.12 | 2022 |
| 70 | West Bank and Gaza | 3.1 | 2022 |
| 71 | Morocco | 3.05 | 2022 |
| 72 | Mexico | 3 | 2022 |
| 73 | Dominica | 2.95 | 2022 |
| 74 | St. Lucia | 2.94 | 2022 |
| 75 | Aruba | 2.9 | 2022 |
| 76 | Latvia | 2.88 | 2022 |
| 77 | France | 2.83 | 2022 |
| 78 | Maldives | 2.79 | 2022 |
| 79 | Tuvalu | 2.79 | 2022 |
| 80 | Croatia | 2.75 | 2022 |
| 81 | Seychelles | 2.69 | 2022 |
| 82 | Grenada | 2.67 | 2022 |
| 83 | St. Kitts and Nevis | 2.63 | 2022 |
| 84 | Lithuania | 2.59 | 2022 |
| 85 | French Polynesia | 2.58 | 2022 |
| 86 | Greece | 2.58 | 2022 |
| 87 | Austria | 2.55 | 2022 |
| 88 | Netherlands | 2.53 | 2022 |
| 89 | Spain | 2.53 | 2022 |
| 90 | Germany | 2.47 | 2022 |
| 91 | St. Vincent and the Grenadines | 2.43 | 2022 |
| 92 | Bahamas, The | 2.42 | 2022 |
| 93 | Timor-Leste | 2.42 | 2022 |
| 94 | Cyprus | 2.36 | 2022 |
| 95 | Portugal | 2.31 | 2022 |
| 96 | Israel | 2.3 | 2022 |
| 97 | Italy | 2.3 | 2022 |
| 98 | Turkiye | 2.27 | 2022 |
| 99 | Colombia | 2.18 | 2022 |
| 100 | Cabo Verde | 2.17 | 2022 |
| 101 | Fiji | 2.15 | 2022 |
| 102 | Romania | 2.12 | 2022 |
| 103 | Albania | 2.06 | 2022 |
| 104 | Guyana | 2.06 | 2022 |
| 105 | United Kingdom | 2.04 | 2022 |
| 106 | Djibouti | 2.03 | 2022 |
| 107 | Costa Rica | 1.91 | 2022 |
| 108 | Denmark | 1.83 | 2022 |
| 109 | Andorra | 1.81 | 2022 |
| 110 | Luxembourg | 1.71 | 2022 |
| 111 | Bermuda | 1.51 | 2022 |
| 112 | Switzerland | 1.48 | 2022 |
| 113 | Malta | 1.18 | 2022 |
| 114 | Macao SAR, China | 1.13 | 2022 |
| 115 | Ireland | 0.97 | 2022 |
| 116 | Puerto Rico | 0.5 | 2022 |