| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. less than a week in total | 1231 |
91.3%
|
| 2 | 2. about a week in total | 63 |
4.7%
|
| 3 | 3. about 2 weeks in total | 29 |
2.1%
|
| 4 | 4. about 3 weeks in total | 11 |
0.8%
|
| 5 | 5. more than a month | 15 |
1.1%
|
| Sysmiss | 214 |