| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 23 |
4%
|
|
| 2006 | 99 |
17.1%
|
|
| 2007 | 98 |
17%
|
|
| 2008 | 113 |
19.6%
|
|
| 2009 | 115 |
19.9%
|
|
| 2010 | 130 |
22.5%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 13846 |