| Valeur | Modalité | Cas | |
|---|---|---|---|
| 1982 | 1 |
0%
|
|
| 1993 | 1 |
0%
|
|
| 1998 | 1 |
0%
|
|
| 2002 | 1 |
0%
|
|
| Sysmiss | 2858 |