| 1999 | ||
| 0 | EU (15 countries) | 6.8 |
| 1 | Belgium | 2.9 |
| 2 | Denmark | 14.8 |
| 3 | Germany | 44.6 |
| 4 | Greece | 27.7 |
| 5 | Spain | 4.4 |
| 6 | France | 0.7 |
| 7 | Ireland | 22.0 |
| 8 | Italy | 51.9 |
| 9 | Luxembourg | 20.5 |
| 10 | Netherlands | 5.2 |
| 11 | Austria | 1.7 |
| 12 | Portugal | 42.3 |
| 13 | Finland | 35.0 |
| 14 | Sweden | 18.5 |
| 15 | United Kingdom | 6.2 |