| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 160 |
11%
|
|
| 2009 | 239 |
16.4%
|
|
| 2010 | 275 |
18.9%
|
|
| 2011 | 385 |
26.5%
|
|
| 2012 | 394 |
27.1%
|
|
| 9997 | Inconsistent | 1 |
0.1%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 10043 |