| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 92 |
12.4%
|
| 1 | 1 year | 36 |
4.9%
|
| 2 | 2 years | 133 |
18%
|
| 3 | 3 years | 160 |
21.6%
|
| 4 | 4 years | 109 |
14.7%
|
| 5 | 5 years | 106 |
14.3%
|
| 6 | 6+ years | 52 |
7%
|
| 7 | Non-numeric | 30 |
4.1%
|
| 8 | Don't know | 22 |
3%
|
| 9 | 1 | ||
| Sysmiss | 404 |