| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than one year | 0 |
0%
|
| 2 | Less than one year | 283 |
88.2%
|
| 3 | Prefer not to answer | 37 |
11.5%
|
| 93 | Prefer not to answer | 1 |
0.3%
|
| Sysmiss | 5667 |