| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2005 | 19 |
20%
|
|
| 2006 | 51 |
53.7%
|
|
| 2007 | 20 |
21.1%
|
|
| 2008 | 4 |
4.2%
|
|
| 2010 | 1 |
1.1%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 16992 |