| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | < 1 year complete | 55 |
13.2%
|
| 1 | 73 |
17.5%
|
|
| 2 | 84 |
20.1%
|
|
| 3 | 70 |
16.7%
|
|
| 4 | 36 |
8.6%
|
|
| 5 | 50 |
12%
|
|
| 6 | 50 |
12%
|
|
| 8 | don't know | 0 |
0%
|
| Sysmiss | 4394 |