| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 113 |
5.9%
|
|
| 2006 | 724 |
37.6%
|
|
| 2007 | 727 |
37.8%
|
|
| 2008 | 283 |
14.7%
|
|
| 2009 | 44 |
2.3%
|
|
| 2010 | 29 |
1.5%
|
|
| 9997 | inconsistent | 3 |
0.2%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 15164 |