| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 154 |
26.5%
|
| 1 | 1 year | 72 |
12.4%
|
| 2 | 2 years | 108 |
18.6%
|
| 3 | 3 years | 94 |
16.2%
|
| 4 | 4 years | 32 |
5.5%
|
| 5 | 5 years | 37 |
6.4%
|
| 6 | 6+ years | 11 |
1.9%
|
| 7 | Non-numeric | 4 |
0.7%
|
| 8 | Don't know | 69 |
11.9%
|
| 9 | 6 | ||
| Sysmiss | 287 |