| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 62 |
5.5%
|
|
| 2009 | 103 |
9.2%
|
|
| 2010 | 182 |
16.2%
|
|
| 2011 | 367 |
32.7%
|
|
| 2012 | 407 |
36.3%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 4208 |