1988
0.33
Indice par pays
| Année | Indice |
|---|---|
| France | 0.4 |
| Denmark | 0.38 |
| Netherlands | 0.38 |
| New Zealand | 0.37 |
| Norway | 0.36 |
| Sweden | 0.35 |
| Austria | 0.33 |
| Finland | 0.32 |
| Korea | 0.26 |
| China | 0.2 |
| Année | Indice |
|---|---|
| France | 0.4 |
| Denmark | 0.38 |
| Netherlands | 0.38 |
| New Zealand | 0.37 |
| Norway | 0.36 |
| Sweden | 0.35 |
| Austria | 0.33 |
| Finland | 0.32 |
| Korea | 0.26 |
| China | 0.2 |