| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2006 | 407 |
6%
|
|
| 2007 | 1159 |
17.1%
|
|
| 2008 | 1533 |
22.6%
|
|
| 2009 | 1990 |
29.3%
|
|
| 2010 | 1699 |
25%
|
|
| 9997 | Inconsistent | 3 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 49387 |