| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. less than a week in total | 1267 |
83.4%
|
| 2 | 2. about a week in total | 135 |
8.9%
|
| 3 | 3. about 2 weeks in total | 52 |
3.4%
|
| 4 | 4. about 3 weeks in total | 26 |
1.7%
|
| 5 | 5. more than a month | 39 |
2.6%
|
| Sysmiss | 44 |