| 2004 | ||
| 0 | EU 27 | .. |
| 1 | EU 25 | .. |
| 2 | Belgium | .. |
| 3 | Bulgaria | 12.0 |
| 4 | Czech Republic | 25.0 |
| 5 | Denmark | 17.0 |
| 6 | Germany | 16.0 |
| 7 | Estonia | 14.0 |
| 8 | Ireland | 23.0 |
| 9 | Greece | 22.0 |
| 10 | Spain | 16.0 |
| 11 | France | 10.0 |
| 12 | Italy | 11.0 |
| 13 | Cyprus | 25.0 |
| 14 | Latvia | 16.0 |
| 15 | Lithuania | 15.0 |
| 16 | Luxembourg | 14.0 |
| 17 | Hungary | 23.0 |
| 18 | Malta | 23.0 |
| 19 | Netherlands | 15.0 |
| 20 | Austria | 6.0 |
| 21 | Poland | 9.0 |
| 22 | Portugal | 28.0 |
| 23 | Romania | 15.0 |
| 24 | Slovenia | 16.0 |
| 25 | Slovakia | 8.0 |
| 26 | Finland | 19.0 |
| 27 | Sweden | 31.0 |
| 28 | United Kingdom | 16.0 |
| 29 | Iceland | 10.0 |
| 30 | Norway | 10.0 |
| 31 | Switzerland | 46.0 |