| Value | Category | Cases | |
|---|---|---|---|
| 1 | less than 1 week | 11 |
12.2%
|
| 2 | 1-4 weeks | 2 |
2.2%
|
| 3 | one month | 4 |
4.4%
|
| 4 | 2-6 months | 46 |
51.1%
|
| 5 | 7-12 months | 17 |
18.9%
|
| 6 | more than 12 months | 10 |
11.1%
|
| Sysmiss | 1231 |