| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 286 |
7.3%
|
| 1 | 1 year | 252 |
6.5%
|
| 2 | 2 years | 465 |
11.9%
|
| 3 | 3 years | 475 |
12.2%
|
| 4 | 4 years | 350 |
9%
|
| 5 | 5 years | 814 |
20.8%
|
| 6 | 6+ years | 1152 |
29.5%
|
| 7 | non-numeric | 21 |
0.5%
|
| 8 | don't know | 90 |
2.3%
|
| Sysmiss | 7854 |