| 1997 | ||
| 0 | EU 27 | 6.20 |
| 1 | EU 15 | 35.90 |
| 2 | Euro area 16 | 54.60 |
| 3 | Belgium | 1.85 |
| 4 | Bulgaria | 6.20 |
| 5 | Czech Republic | 35.60 |
| 6 | Denmark | 54.90 |
| 7 | Germany | 1.92 |
| 8 | Estonia | .. |
| 9 | Ireland | .. |
| 10 | Greece | 56.20 |
| 11 | Spain | 1.86 |
| 12 | France | 7.90 |
| 13 | Italy | 23.80 |
| 14 | Cyprus | 59.40 |
| 15 | Latvia | 1.86 |
| 16 | Lithuania | .. |
| 17 | Luxembourg | 69.70 |
| 18 | Hungary | 24.80 |
| 19 | Malta | 0.48 |
| 20 | Netherlands | .. |
| 21 | Austria | 36.80 |
| 22 | Poland | 53.70 |
| 23 | Portugal | 1.55 |
| 24 | Romania | .. |
| 25 | Slovenia | .. |
| 26 | Slovakia | .. |
| 27 | Finland | 2.48 |
| 28 | Sweden | 1.70 |
| 29 | United Kingdom | 34.80 |
| 30 | Croatia | 65.50 |
| 31 | Turkey | 2.53 |
| 32 | Iceland | .. |
| 33 | Norway | 63.30 |
| 34 | Switzerland | 29.10 |