| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 9 |
17.6%
|
|
| 2009 | 27 |
52.9%
|
|
| 2010 | 14 |
27.5%
|
|
| 2012 | 1 |
2%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 5278 |