| 2001 | ||
| 0 | EU (15 countries) | 4.6 |
| 1 | Belgium | 4.1 |
| 2 | Denmark | 1.4 |
| 3 | Germany | 1.6 |
| 4 | Greece | 0.6 |
| 5 | Spain | 0.6 |
| 6 | France | 1.9 |
| 7 | Ireland | 1.7 |
| 8 | Italy | 21.2 |
| 9 | Luxembourg | 18.5 |
| 10 | Netherlands | 10.7 |
| 11 | Austria | 8.5 |
| 12 | Portugal | 2.9 |
| 13 | Finland | 2.2 |
| 14 | Sweden | 2.8 |
| 15 | United Kingdom | 4.6 |