| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | < 1 year complete | 27 |
11.9%
|
| 1 | 31 |
13.7%
|
|
| 2 | 42 |
18.5%
|
|
| 3 | 49 |
21.6%
|
|
| 4 | 34 |
15%
|
|
| 5 | 20 |
8.8%
|
|
| 6 | 24 |
10.6%
|
|
| 8 | don't know | 0 |
0%
|
| Sysmiss | 4585 |