| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 30 |
3.3%
|
|
| 2009 | 150 |
16.6%
|
|
| 2010 | 169 |
18.7%
|
|
| 2011 | 216 |
23.9%
|
|
| 2012 | 340 |
37.6%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 10592 |