| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 6 |
21.4%
|
| 1 | 1 year | 3 |
10.7%
|
| 2 | 2 years | 6 |
21.4%
|
| 3 | 3 years | 5 |
17.9%
|
| 4 | 4 years | 2 |
7.1%
|
| 5 | 5 years | 2 |
7.1%
|
| 6 | 6+ years | 4 |
14.3%
|
| 7 | non-numeric | 0 |
0%
|
| 8 | don't know | 0 |
0%
|
| Sysmiss | 102 |