| Value | Category | Cases | |
|---|---|---|---|
| -98 | Don't know | 0 |
0%
|
| 1 | Hour | 0 |
0%
|
| 2 | Day | 2 |
6.5%
|
| 3 | Week | 1 |
3.2%
|
| 4 | Month | 28 |
90.3%
|
| 5 | Year | 0 |
0%
|
| Sysmiss | 3126 |