| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 65 |
18.4%
|
|
| 2009 | 135 |
38.1%
|
|
| 2010 | 87 |
24.6%
|
|
| 2011 | 53 |
15%
|
|
| 2012 | 12 |
3.4%
|
|
| 9997 | Inconsistent | 2 |
0.6%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 4975 |