| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | < 1 year complete | 5 |
11.9%
|
| 1 | 9 |
21.4%
|
|
| 2 | 10 |
23.8%
|
|
| 3 | 6 |
14.3%
|
|
| 4 | 4 |
9.5%
|
|
| 5 | 3 |
7.1%
|
|
| 6 | 5 |
11.9%
|
|
| 8 | don't know | 0 |
0%
|
| Sysmiss | 4770 |