| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 10 |
10.3%
|
|
| 2011 | 74 |
76.3%
|
|
| 2012 | 6 |
6.2%
|
|
| 9999 | manquant | 7 |
7.2%
|
| Sysmiss | 7763 |