| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 5 |
2.8%
|
|
| 2006 | 37 |
21%
|
|
| 2007 | 42 |
23.9%
|
|
| 2008 | 29 |
16.5%
|
|
| 2009 | 24 |
13.6%
|
|
| 2010 | 39 |
22.2%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 14248 |