| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2008 | 164 |
3.1%
|
|
| 2009 | 286 |
5.4%
|
|
| 2010 | 427 |
8.1%
|
|
| 2011 | 724 |
13.7%
|
|
| 2012 | 1146 |
21.6%
|
|
| 2013 | 1311 |
24.7%
|
|
| 2014 | 1242 |
23.4%
|
|
| Sysmiss | 2811 |