| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 27 |
7.7%
|
|
| 2009 | 105 |
29.9%
|
|
| 2010 | 112 |
31.9%
|
|
| 2011 | 81 |
23.1%
|
|
| 2012 | 26 |
7.4%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 4978 |