| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 41 |
0.5%
|
|
| 2006 | 997 |
11.7%
|
|
| 2007 | 1424 |
16.7%
|
|
| 2008 | 1881 |
22%
|
|
| 2009 | 2244 |
26.3%
|
|
| 2010 | 1946 |
22.8%
|
|
| 9997 | Inconsistent | 2 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 6509 |