| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1992 | 1 |
3.4%
|
|
| 1995 | 1 |
3.4%
|
|
| 1998 | 2 |
6.9%
|
|
| 1999 | 2 |
6.9%
|
|
| 2000 | 4 |
13.8%
|
|
| 2001 | 6 |
20.7%
|
|
| 2002 | 5 |
17.2%
|
|
| 2003 | 3 |
10.3%
|
|
| 2004 | 4 |
13.8%
|
|
| 9999 | NSP | 1 |
3.4%
|
| Sysmiss | 9518 |