| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 79 |
28.3%
|
| 1 | 1 year | 37 |
13.3%
|
| 2 | 2 years | 41 |
14.7%
|
| 3 | 3 years | 39 |
14%
|
| 4 | 4 years | 12 |
4.3%
|
| 5 | 5 years | 19 |
6.8%
|
| 6 | 6+ years | 15 |
5.4%
|
| 7 | non-numeric | 15 |
5.4%
|
| 8 | don't know | 22 |
7.9%
|
| Sysmiss | 526 |