| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 62 |
0.8%
|
|
| 2006 | 432 |
5.8%
|
|
| 2007 | 857 |
11.5%
|
|
| 2008 | 1730 |
23.2%
|
|
| 2009 | 2361 |
31.7%
|
|
| 2010 | 2002 |
26.9%
|
|
| 9997 | inconsistent | 6 |
0.1%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 9637 |