| 1988 | ||
| 0 | EU 27 | .. |
| 1 | EU 25 | .. |
| 2 | Euro area 13 | .. |
| 3 | Euro area 12 | .. |
| 4 | Belgium | 64987 |
| 5 | Bulgaria | .. |
| 6 | Czech Republic | 30737 |
| 7 | Denmark | .. |
| 8 | Germany | .. |
| 9 | Estonia | .. |
| 10 | Ireland | .. |
| 11 | Greece | .. |
| 12 | Spain | .. |
| 13 | France | .. |
| 14 | Italy | .. |
| 15 | Cyprus | .. |
| 16 | Latvia | 1120 |
| 17 | Lithuania | 424 |
| 18 | Luxembourg | 578 |
| 19 | Hungary | .. |
| 20 | Malta | 1831 |
| 21 | Netherlands | 587 |
| 22 | Austria | 1125 |
| 23 | Poland | 304 |
| 24 | Portugal | 1694 |
| 25 | Romania | 704 |
| 26 | Slovenia | 547 |
| 27 | Slovakia | 157 |
| 28 | Finland | 427 |
| 29 | Sweden | 217 |
| 30 | United Kingdom | 376 |
| 31 | Croatia | 177 |
| 32 | Macedonia | 7419 |
| 33 | Iceland | 2101 |
| 34 | Liechtenstein | 3962 |
| 35 | Norway | .. |
| 36 | Switzerland | 333 |
| 37 | Albania | 131 |
| 38 | Bosnia-Herzegovina | 139 |
| 39 | Serbia and Montenegro | 31 |