| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 275 |
20.1%
|
| 1 | 1 year | 179 |
13.1%
|
| 2 | 2 years | 225 |
16.4%
|
| 3 | 3 years | 197 |
14.4%
|
| 4 | 4 years | 64 |
4.7%
|
| 5 | 5 years | 60 |
4.4%
|
| 6 | 6+ years | 106 |
7.7%
|
| 7 | non-numeric | 106 |
7.7%
|
| 8 | don't know | 159 |
11.6%
|
| Sysmiss | 474 |