| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 95 |
24.1%
|
|
| 2009 | 139 |
35.3%
|
|
| 2010 | 107 |
27.2%
|
|
| 2011 | 44 |
11.2%
|
|
| 2012 | 9 |
2.3%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 4935 |