| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 174 |
11.7%
|
|
| 2009 | 251 |
16.8%
|
|
| 2010 | 274 |
18.4%
|
|
| 2011 | 395 |
26.5%
|
|
| 2012 | 397 |
26.6%
|
|
| 9997 | Inconsistent | 2 |
0.1%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 1656 |