| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 983 |
65%
|
| 1 | 1 year | 103 |
6.8%
|
| 2 | 2 years | 199 |
13.2%
|
| 3 | 3 years | 82 |
5.4%
|
| 4 | 4 years | 8 |
0.5%
|
| 5 | 5 years | 9 |
0.6%
|
| 6 | 6+ years | 7 |
0.5%
|
| 7 | non-numeric | 21 |
1.4%
|
| 8 | don't know | 100 |
6.6%
|
| Sysmiss | 4161 |