| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 695 |
64.5%
|
| 1 | 1 year | 82 |
7.6%
|
| 2 | 2 years | 151 |
14%
|
| 3 | 3 years | 54 |
5%
|
| 4 | 4 years | 3 |
0.3%
|
| 5 | 5 years | 7 |
0.6%
|
| 6 | 6+ years | 6 |
0.6%
|
| 7 | non-numeric | 12 |
1.1%
|
| 8 | don't know | 67 |
6.2%
|
| Sysmiss | 891 |