| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1998 | 1 |
0.2%
|
|
| 1999 | 136 |
21.7%
|
|
| 2000 | 253 |
40.4%
|
|
| 2001 | 167 |
26.7%
|
|
| 2002 | 43 |
6.9%
|
|
| 2003 | 21 |
3.4%
|
|
| 9997 | inconsistent | 5 |
0.8%
|
| 9998 | dk | 0 |
0%
|
| Sysmiss | 11851 |