| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 2 |
5.4%
|
|
| 2009 | 19 |
51.4%
|
|
| 2010 | 10 |
27%
|
|
| 2011 | 3 |
8.1%
|
|
| 2012 | 3 |
8.1%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 5292 |