| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 2017 | 28 |
32.9%
|
|
| 2018 | 36 |
42.4%
|
|
| 2019 | 18 |
21.2%
|
|
| 9997 | inconsistent | 3 |
3.5%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 15629 |