| Country (Percent) |
| Belarus | 39.4 in 2019 | UNECE |
| Andorra | 37.5 in 2017 | UNECE |
| Republic of Moldova | 37 in 2005 | UNECE |
| Turkey | 36.2 in 2019 | UNECE |
| United States of America | 36 in 2014 | UNECE |
| Latvia | 35.8 in 2019 | UNECE |
| Serbia | 34 in 2013 | UNECE |
| Russian Federation | 33.9 in 2013 | UNECE |
| Armenia | 32.6 in 2005 | UNECE |
| Malta | 32.3 in 2014 | UNECE |
| Slovakia | 30.3 in 2019 | UNECE |
| Ireland | 30.1 in 2019 | UNECE |
| Hungary | 29.1 in 2019 | UNECE |
| Israel | 27.4 in 2019 | UNECE |
| Poland | 26.6 in 2014 | UNECE |
| Lithuania | 26.4 in 2019 | UNECE |
| Slovenia | 26 in 2019 | UNECE |
| Spain | 26 in 2017 | UNECE |
| Iceland | 25.4 in 2017 | UNECE |
| Cyprus | 24.5 in 2019 | UNECE |
| Croatia | 23.4 in 2014 | UNECE |
| Finland | 23.2 in 2019 | UNECE |
| Greece | 23.1 in 2019 | UNECE |
| Portugal | 20.5 in 2019 | UNECE |
| Canada | 19.8 in 2019 | UNECE |
| Kyrgyzstan | 19.8 in 2019 | UNECE |
| France | 19.5 in 2014 | UNECE |
| Austria | 19.3 in 2019 | UNECE |
| Germany | 19.3 in 2017 | UNECE |
| Netherlands | 18.2 in 2019 | UNECE |
| Belgium | 17 in 2013 | UNECE |
| Bulgaria | 17 in 2019 | UNECE |
| Azerbaijan | 16.5 in 2017 | UNECE |
| Denmark | 16.3 in 2017 | UNECE |
| Romania | 15 in 2014 | UNECE |
| Sweden | 14.8 in 2019 | UNECE |
| Italy | 14.7 in 2019 | UNECE |
| Switzerland | 13.4 in 2017 | UNECE |
| Norway | 13 in 2019 | UNECE |
| Ukraine | 22.2 in 2019 | UNECE |
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