| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Belgium | 19.45806 | 2020 |
| 2 | Spain | 17.45289 | 2020 |
| 3 | Portugal | 16.69979 | 2020 |
| 4 | Hong Kong SAR, China | 16.19548 | 2020 |
| 5 | Estonia | 15.61385 | 2020 |
| 6 | Italy | 15.27607 | 2020 |
| 7 | Netherlands | 15.27495 | 2020 |
| 8 | Cyprus | 15.15553 | 2020 |
| 9 | France | 15.0951 | 2020 |
| 10 | Chile | 13.09864 | 2020 |
| 11 | Poland | 12.983 | 2020 |
| 12 | Finland | 12.73721 | 2020 |
| 13 | United Kingdom | 12.35722 | 2020 |
| 14 | Singapore | 10.47876 | 2020 |
| 15 | Greece | 9.348526 | 2020 |
| 16 | Germany | 8.773171 | 2020 |
| 17 | South Africa | 8.723962 | 2020 |
| 18 | Norway | 8.541782 | 2020 |
| 19 | Peru | 8.295699 | 2020 |
| 20 | Ireland | 8.245324 | 2020 |
| 21 | Taiwan, China | 7.80532 | 2020 |
| 22 | Austria | 7.620338 | 2020 |
| 23 | Hungary | 6.982013 | 2020 |
| 24 | Denmark | 6.442462 | 2020 |
| 25 | Lithuania | 5.928308 | 2020 |
| 26 | Bulgaria | 5.859813 | 2020 |
| 27 | Malta | 5.830813 | 2020 |
| 28 | Australia | 5.009264 | 2020 |
| 29 | Sweden | 4.677627 | 2020 |
| 30 | Slovenia | 4.007167 | 2020 |
| 31 | China | 3.610288 | 2020 |
| 32 | Russian Federation | 3.499081 | 2020 |
| 33 | Czech Republic | 3.496004 | 2020 |
| 34 | Turkey | 3.231932 | 2020 |
| 35 | Latvia | 2.984871 | 2020 |
| 36 | Morocco | 2.752725 | 2020 |
| 37 | Colombia | 2.498546 | 2020 |
| 38 | Croatia | 2.481976 | 2020 |
| 39 | Lebanon | 2.481162 | 2020 |
| 40 | Romania | 2.478222 | 2020 |
| 41 | Mauritius | 2.282388 | 2020 |
| 42 | Serbia | 2.154834 | 2020 |
| 43 | Korea, Rep. | 1.926905 | 2020 |
| 44 | Slovak Republic | 1.882175 | 2020 |
| 45 | United Arab Emirates | 1.693727 | 2020 |
| 46 | Costa Rica | 1.667498 | 2020 |
| 47 | Mexico | 1.637519 | 2020 |
| 48 | Malaysia | 1.62525 | 2020 |
| 49 | Brazil | 1.601045 | 2020 |
| 50 | Armenia | 1.552621 | 2020 |
| 51 | Thailand | 1.437174 | 2020 |
| 52 | Botswana | 1.39958 | 2020 |
| 53 | Japan | 1.263376 | 2020 |
| 54 | Belarus | 1.242205 | 2020 |
| 55 | Georgia | 1.17369 | 2020 |
| 56 | Israel | 1.144204 | 2020 |
| 57 | Argentina | 0.8527335 | 2020 |
| 58 | Tunisia | 0.8068979 | 2020 |
| 59 | Luxembourg | 0.5677918 | 2020 |
| 60 | Guatemala | 0.474366 | 2020 |
| 61 | Vietnam | 0.409096 | 2020 |
| 62 | Dominican Republic | 0.3937567 | 2020 |
| 63 | United States | 0.375985 | 2020 |
| 64 | Azerbaijan | 0.3225635 | 2020 |
| 65 | Bosnia and Herzegovina | 0.310055 | 2020 |
| 66 | Sri Lanka | 0.3040891 | 2020 |
| 67 | Honduras | 0.2677926 | 2020 |
| 68 | North Macedonia | 0.2300759 | 2020 |
| 69 | Egypt, Arab Rep. | 0.2041397 | 2020 |
| 70 | Ukraine | 0.2034887 | 2020 |
| 71 | Canada | 0.1827173 | 2020 |
| 72 | Oman | 0.1800885 | 2020 |
| 73 | India | 0.1666396 | 2020 |
| 74 | Uruguay | 0.1441525 | 2020 |
| 75 | Switzerland | 0.0967328 | 2020 |
| 76 | Indonesia | 0.0530989 | 2020 |
| 77 | Moldova | 0.0514981 | 2020 |
| 78 | New Zealand | 0.0203657 | 2020 |