| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1996 | 85 | 89 |
7.3%
|
|
| 1997 | 223 | 224 |
18.5%
|
|
| 1998 | 254 | 249 |
20.6%
|
|
| 1999 | 284 | 283 |
23.4%
|
|
| 2000 | 334 | 330 |
27.3%
|
|
| 9997 | Manquante | 29 | 35 |
2.9%
|
| Sysmiss | 1945 | 1946 |