| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | <12 months | 1010 |
18.7%
|
| 1 | 1 year | 499 |
9.2%
|
| 2 | 2 years | 1068 |
19.8%
|
| 3 | 3 years | 1422 |
26.3%
|
| 4 | 4 years | 497 |
9.2%
|
| 5 | 5 years | 369 |
6.8%
|
| 6 | 6+ years | 350 |
6.5%
|
| 7 | Non-numeric | 0 |
0%
|
| 8 | Don't know | 192 |
3.6%
|