Response rates by participating countries
| Country | Responses (n) | Country | Responses (n) |
| France | 213 | Finland | 12 |
| Italy | 155 | Romania | 11 |
| Turkey | 151 | Estonia | 10 |
| Germany | 140 | Sweden | 9 |
| Portugal | 126 | Luxembourg | 8 |
| Belgium | 111 | Norway | 7 |
| Czech Republic | 73 | Bosnia & Herzegovina | 6 |
| Spain | 61 | Iceland | 6 |
| Greece | 52 | UK | 6 |
| Hungary | 45 | Slovenia | 5 |
| Serbia | 45 | Montenegro | 4 |
| Austria | 41 | Denmark | 3 |
| Slovakia | 40 | Malta | 3 |
| Switzerland | 32 | Armenia | 2 |
| North Macedonia | 25 | Croatia | 2 |
| The Netherlands | 15 | Cyprus | 2 |
| Ireland | 14 | Lithuania | 2 |
| Poland | 13 | Others | 4 |
| Bulgaria | 12 | Total | 1466 |
Note that all the countries for which only one survey was provided were grouped and reported as ‘Others’.