| Value | Category | Cases | |
|---|---|---|---|
| 2005 | 1 |
20%
|
|
| 2008 | 1 |
20%
|
|
| 2015 | 2 |
40%
|
|
| 2016 | 1 |
20%
|
|
| 9998 | Ne sait pas | 0 |
0%
|
| Sysmiss | 4344 |