| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 356 |
29.7%
|
| 1 | 1 year | 58 |
4.8%
|
| 2 | 2 years | 141 |
11.8%
|
| 3 | 3 years | 156 |
13%
|
| 4 | 4 years | 97 |
8.1%
|
| 5 | 5 years | 99 |
8.3%
|
| 6 | 6+ years | 56 |
4.7%
|
| 7 | Non-numeric | 203 |
17%
|
| 8 | Don't know | 31 |
2.6%
|
| 9 | 3 | ||
| Sysmiss | 1850 |