| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 1 |
2.2%
|
|
| 2006 | 8 |
17.8%
|
|
| 2007 | 4 |
8.9%
|
|
| 2008 | 13 |
28.9%
|
|
| 2009 | 7 |
15.6%
|
|
| 2010 | 12 |
26.7%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 14379 |