| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Measured | 1983 |
97%
|
| 3 | Not present | 21 |
1%
|
| 4 | Refused | 23 |
1.1%
|
| 6 | Other | 13 |
0.6%
|
| 9 | 4 |
0.2%
|
|
| Sysmiss | 12380 |