| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1994 | 98 |
21.2%
|
|
| 1995 | 174 |
37.7%
|
|
| 1996 | 102 |
22.1%
|
|
| 1997 | 56 |
12.1%
|
|
| 1998 | 28 |
6.1%
|
|
| 1999 | 1 |
0.2%
|
|
| 9997 | inconsistent | 3 |
0.6%
|
| 9998 | dk | 0 |
0%
|
| Sysmiss | 5983 |