| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 293 |
6.3%
|
|
| 2009 | 977 |
20.8%
|
|
| 2010 | 1161 |
24.8%
|
|
| 2011 | 1241 |
26.5%
|
|
| 2012 | 1001 |
21.4%
|
|
| 2013 | 14 |
0.3%
|
|
| 9999 | Manquant | 1 |
0%
|
| Sysmiss | 10452 |