| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 188 |
37.9%
|
| 2 | 1–3 months | 223 |
45%
|
| 3 | 4–6 months | 45 |
9.1%
|
| 4 | 7–12 months | 23 |
4.6%
|
| 5 | More than 12 months | 17 |
3.4%
|
| Sysmiss | 60393 |