| Value | Category | Cases | |
|---|---|---|---|
| 1 | Shorter than 1 year | 0 |
0%
|
| 2 | 1 to 2 years | 1 |
6.3%
|
| 3 | Longer than 2 years | 10 |
62.5%
|
| 98 | Undecided or Don’t Know | 5 |
31.3%
|
| Sysmiss | 836 |