| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2006 | 2 |
16.7%
|
|
| 2007 | 3 |
25%
|
|
| 2008 | 2 |
16.7%
|
|
| 2009 | 2 |
16.7%
|
|
| 2010 | 3 |
25%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 14412 |