| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1282 |
5.5%
|
| 2 | Monthly | 2474 |
10.6%
|
| 3 | Yearly | 2415 |
10.3%
|
| 4 | Not all | 17163 |
73.6%
|
| Sysmiss | 1073 |