| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2009 | 1 |
7.1%
|
|
| 2010 | 3 |
21.4%
|
|
| 2011 | 7 |
50%
|
|
| 2012 | 3 |
21.4%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 294 |