| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Registered at national level | 325 |
7.6%
|
| 2 | Not registered at national level | 1995 |
46.7%
|
| 3 | Not stated | 1950 |
45.7%
|
| Sysmiss | 7165 |