| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 3 |
0%
|
|
| 2006 | 268 |
4.4%
|
|
| 2007 | 619 |
10.1%
|
|
| 2008 | 1321 |
21.5%
|
|
| 2009 | 2077 |
33.8%
|
|
| 2010 | 1859 |
30.2%
|
|
| 9997 | inconsistent | 3 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 10937 |