| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 230 |
27%
|
| 1 | 1 year | 122 |
14.3%
|
| 2 | 2 years | 151 |
17.7%
|
| 3 | 3 years | 144 |
16.9%
|
| 4 | 4 years | 32 |
3.8%
|
| 5 | 5 years | 20 |
2.3%
|
| 6 | 6+ years | 9 |
1.1%
|
| 7 | non-numeric | 48 |
5.6%
|
| 8 | don't know | 96 |
11.3%
|
| Sysmiss | 294 |