| Countries | 2004 | 2019 | 2020 | Change |
|---|---|---|---|---|
| Germany | 56.4 | 69.6 | ||
| Austria | 57.4 | 62.3 | ||
| Slovenia | 20.4 | 59.3 | ||
| Netherlands | 46.9 | 56.9 | ||
| Luxembourg | 41.5 | 52.8 | ||
| Belgium | 53.5 | 52.3 | ||
| Italy | 17.6 | 51.4 | ||
| Czechia | 5.5 | 45.4 | ||
| Lithuania | 1.9 | 45.3 | ||
| Denmark | 41.0 | 45.0 | ||
| France | 29.0 | 42.7 | ||
| Slovakia | 6.1 | 42.2 | ||
| Finland | 33.6 | 41.6 | ||
| Ireland | 29.5 | 40.4 | ||
| Latvia | 4.4 | 39.7 | ||
| Poland | 4.9 | 38.7 | ||
| Sweden | 43.9 | 38.3 | ||
| Spain | 30.9 | 36.4 | ||
| Bulgaria | 17.2 | 34.6 | ||
| Hungary | 11.8 | 32.0 | ||
| Croatia | 3.2 | 29.5 | ||
| Estonia | 24.8 | 28.9 | ||
| Portugal | 13.5 | 26.5 | ||
| Greece | 10.1 | 21.0 | ||
| Cyprus | 3.2 | 16.6 | ||
| Romania | 1.1 | 13.7 | ||
| Malta | 6.3 | 10.5 | ||
| EU-27 | 31.8 | 48.6 | ||
| Switzerland | 48.7 | 52.8 | ||
| Norway | 36.5 | 45.0 | ||
| Albania | 0.0 | 18.1 | ||
| Serbia | 0.0 | 15.4 | ||
| Montenegro | 0.0 | 4.6 | ||
| Kosovo* | 0.0 | 0.0 |