| 1999 | ||
| 0 | EU (15 countries) | 4.9 |
| 1 | Belgium | 3.9 |
| 2 | Denmark | 2.1 |
| 3 | Germany | 0.8 |
| 4 | Greece | 0.4 |
| 5 | Spain | 0.9 |
| 6 | France | 1.8 |
| 7 | Ireland | 1.7 |
| 8 | Italy | 20.6 |
| 9 | Luxembourg | 18.3 |
| 10 | Netherlands | 11.2 |
| 11 | Austria | 6.9 |
| 12 | Portugal | 3.0 |
| 13 | Finland | 1.8 |
| 14 | Sweden | 3.1 |
| 15 | United Kingdom | 3.2 |