Distribution of responses by country
| Country | Respondents (n) | Country | Respondents (n) |
| Austria | 2 | Latvia | 1 |
| Belgium | 3 | Lithuania | 2 |
| Bulgaria | 2 | Norway | 4 |
| Czech Republic | 6 | Portugal | 4 |
| Denmark | 2 | Russia | 1 |
| Finland | 1 | Slovak Republic | 3 |
| France | 2 | Spain | 1 |
| Germany | 10 | Sweden | 3 |
| The Netherlands | 3 | Switzerland | 2 |
| Hungary | 1 | Turkey | 1 |
| Ireland | 2 | United Kingdom | 4 |
| Italy | 5 | Total | 65 |