| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2007 | 2 |
3.6%
|
|
| 2008 | 36 |
64.3%
|
|
| 2009 | 13 |
23.2%
|
|
| 2010 | 5 |
8.9%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 5273 |