| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. one week or less | 15 |
55.6%
|
| 2 | 9 |
33.3%
|
|
| 3 | 3 |
11.1%
|
|
| 99 | 99. don't know | 0 |
0%
|
| Sysmiss | 72 |