| Value | Category | Cases | |
|---|---|---|---|
| 1 | less than two weeks | 17 |
18.3%
|
| 2 | between two weeks and one month | 7 |
7.5%
|
| 3 | one month | 10 |
10.8%
|
| 4 | more than one month | 59 |
63.4%
|
| Sysmiss | 20552 |